Adult ESL/ELL Intermediate Quiz: Paragraph Writing Conventions
10 questions · exam conditions
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Paragraph Writing ConventionsQuestion 1 of 10

A student is revising this paragraph:

Learning a new language is difficult. you need to practice every day. Listening, speaking, reading, and writing all require different skills however many students focus only on grammar. This can slow down their progress.

Which version of sentences 3 and 4 BEST corrects the punctuation and capitalization errors while maintaining the original meaning?

Listening, speaking, reading, and writing all require different skills; however, many students focus only on grammar, this can slow down their progress.
Listening, speaking, reading, and writing all require different skills; however, many students focus only on grammar. This can slow down their progress.
Listening, speaking, reading, and writing all require different skills, however many students focus only on grammar. This can slow down their progress.
Listening, speaking, reading, and writing all require different skills. However many students focus only on grammar this can slow down their progress.
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Adult ESL/ELL Intermediate Quiz

Adult ESL/ELL Intermediate Quiz: Paragraph Writing Conventions

Practice Paragraph Writing Conventions in Adult ESL/ELL Intermediate with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Paragraph Writing Conventions, giving you a quick way to practice the rules, question types, and explanations that matter most for Adult ESL/ELL Intermediate.

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

A student is revising this paragraph:

Learning a new language is difficult. you need to practice every day. Listening, speaking, reading, and writing all require different skills however many students focus only on grammar. This can slow down their progress.

Which version of sentences 3 and 4 BEST corrects the punctuation and capitalization errors while maintaining the original meaning?

  1. Listening, speaking, reading, and writing all require different skills; however, many students focus only on grammar, this can slow down their progress.
  2. Listening, speaking, reading, and writing all require different skills; however, many students focus only on grammar. This can slow down their progress. (correct answer)
  3. Listening, speaking, reading, and writing all require different skills, however many students focus only on grammar. This can slow down their progress.
  4. Listening, speaking, reading, and writing all require different skills. However many students focus only on grammar this can slow down their progress.
Explanation: When you see a question about combining two closely related sentences using a transition word like "however," you need to think about two things: conjunctive adverbs and comma splices. Unlike coordinating conjunctions (and, but, so), words like however cannot join two independent clauses with just a comma — they need a semicolon before them and a comma after. The original sentences are missing punctuation after "skills," leaving "however" stranded without proper support. The correct fix is a semicolon before however and a comma after it, creating: "...all require different skills; however, many students focus only on grammar." The final sentence — "This can slow down their progress" — stands alone cleanly as its own sentence. That's exactly what B does, making it the correct answer. A is close, but it connects "many students focus only on grammar" and "this can slow down their progress" with only a comma, creating a comma splice — two complete thoughts incorrectly joined by a comma alone. C uses only a comma before however, which is another comma splice. A comma is not strong enough to separate two independent clauses when using a conjunctive adverb. D drops all internal punctuation and runs multiple ideas together. "However many students focus only on grammar this can slow down their progress" is a run-on that completely loses the original meaning and structure. A quick tip: whenever you see however, therefore, or moreover joining two complete sentences, remember the formula — semicolon before, comma after — and you'll avoid the most common punctuation trap on this type of question.

Question 2

Read this paragraph:

(A) My brother moved to the united states in 2018. (B) He studied english at a community college. (C) After two years, he got a job at a technology company called apex solutions. (D) Now he speaks english fluently and helps other immigrants in his community.

A student reviewing this paragraph says: 'Only sentences A and B have capitalization errors.' Is the student correct, and which choice best explains why or why not?

  1. The student is correct. 'united states' in A and 'english' in B are the only errors because proper nouns and proper adjectives must always be capitalized, and no other words in the paragraph violate this rule.
  2. The student is incorrect. Sentences A, B, C, and D all have capitalization errors: 'united states,' 'english,' 'apex solutions,' and the second use of 'english' must all be capitalized as proper nouns or proper adjectives. (correct answer)
  3. The student is incorrect. Sentences A, B, and C have errors: 'united states' and 'english' need capitalization, but 'apex solutions' in sentence C is a made-up company name and does not require capitalization in a paragraph context.
  4. The student is partially correct. Only sentences A and C have errors: 'united states' and 'apex solutions' are proper nouns that need capitalization, while 'english' in sentences B and D refers to a school subject, not a nationality, so it does not need to be capitalized.
Explanation: Whenever you see a question about capitalization, train yourself to check every sentence carefully rather than stopping once you find a couple of errors. The core rule is simple: proper nouns and proper adjectives — the specific names of people, places, organizations, languages, and nationalities — must always be capitalized. Walking through the paragraph, sentence A contains "united states," which is the name of a specific country and must be capitalized as "United States." Sentence B contains "english," which refers to the English language — a proper adjective derived from a nationality — and must be capitalized. Sentence C contains "apex solutions," the specific name of a company, making it a proper noun that requires capitalization as "Apex Solutions." Sentence D contains "english" again, and the same rule applies: it's still a reference to the English language, so it still needs a capital E. That means B is correct — all four sentences contain errors. Choice A is tempting because it correctly identifies the errors in sentences A and B, but it stops there and misses the errors in C and D. Choice C correctly catches sentences A and B but wrongly claims that a "made-up" company name doesn't need capitalization — this is false; fictional or real, any specific organization name is a proper noun. Choice D makes a faulty distinction, claiming "english" refers only to a school subject rather than a language or nationality. That reasoning is incorrect — "English" always names a specific language and must be capitalized regardless of context. Your study tip: when scanning for capitalization errors, pause on every noun and ask yourself, "Is this the specific name of something?" If yes, it needs a capital letter.

Question 3

A student submitted this paragraph:

Dr. garcia is my favorite teacher at westside adult school. She teaches english on tuesday and thursday evenings. Her class meets in room 204, which is on the second floor. Every student in the class respects her because she explains grammar clearly and patiently.

Which of the following correctly identifies ALL the capitalization errors in the paragraph and explains the rule violated in each case?

  1. Two errors: 'garcia' should be 'Garcia' (part of a proper name) and 'english' should be 'English' (proper adjective from a country name). 'Westside adult school,' 'tuesday,' and 'thursday' are all correctly written in lowercase in this context.
  2. Four errors: 'garcia' → 'Garcia' (proper name), 'westside adult school' → 'Westside Adult School' (institution name), 'english' → 'English' (proper adjective), and 'tuesday'/'thursday' → 'Tuesday'/'Thursday' (days of the week). 'Room 204' also requires capitalization because it identifies a specific numbered location.
  3. Three errors: 'garcia' → 'Garcia,' 'english' → 'English,' and 'room 204' → 'Room 204.' 'Westside adult school,' 'tuesday,' and 'thursday' are stylistic choices that vary by publisher and are not required to be capitalized in paragraph writing.
  4. Five errors across three rules: 'garcia' → 'Garcia' and 'westside adult school' → 'Westside Adult School' (proper noun rule); 'english' → 'English' (proper adjective rule); 'tuesday' → 'Tuesday' and 'thursday' → 'Thursday' (days-of-the-week rule). 'Room 204' does not require capitalization because 'room' is a generic common noun here, not part of an official title. (correct answer)
Explanation: Capitalization questions test whether you can apply consistent grammar rules — not just spot one or two errors, but identify all of them systematically. When reviewing a paragraph for capitalization, mentally check four categories: proper names, institution names, proper adjectives (words derived from place names), and time words like days and months. In this passage, there are exactly five errors across three rules. "Garcia" must be capitalized because it is part of a person's proper name. "Westside Adult School" requires capitalization of all major words because it is the official name of a specific institution. "English" must be capitalized because it is a proper adjective derived from the country name "England." Finally, "Tuesday" and "Thursday" must be capitalized because days of the week are always capitalized in standard English — no exceptions. That makes D the correct answer, and it accurately pairs each error with the rule it violates. Answer A is wrong because it claims only two errors exist, ignoring the school name and the days of the week — both of which have clear, non-optional capitalization rules. Answer B is tempting but adds a false error: it claims "Room 204" must be capitalized. However, "room" here is a generic common noun describing a location, not part of a formal title like "Room 204B Conference Suite," so it stays lowercase. Answer C also invents the "Room 204" error and incorrectly classifies "Westside Adult School," "Tuesday," and "Thursday" as stylistic choices — they are not optional. Your study tip: build a mental checklist — names, institutions, proper adjectives, days/months. If a question says "all errors," trust that checklist completely before selecting your answer.

Question 4

Read this paragraph and focus on sentence boundaries:

Ana is a hardworking student. She goes to class every morning, then she studies at the library for three hours. Because she wants to pass her final exam. She rarely watches television or spends time on social media. Resulting in excellent grades every semester.

Which of the following correctly identifies the sentence boundary errors in the paragraph?

  1. Sentence 2 is a run-on, and both sentence 3 and the last item are fragments. To fix them, sentence 3 should be attached to sentence 2 (making a causal connection), and the last item should be attached to sentence 4.
  2. Sentence 2 is a comma splice, but it is acceptable in informal writing. Sentence 3 is a complete sentence because it contains a subject ('she') and a verb ('wants'). The last item is a fragment, but fragments are acceptable when they directly follow a complete sentence.
  3. There is only one error: sentence 3 is a fragment. Sentence 2 is correctly punctuated because a comma before 'then' is always acceptable, and the last item is a participial phrase that functions as a complete sentence when it follows related content.
  4. Sentence 2 is a run-on (comma splice) because two independent clauses are joined with only a comma and the adverb 'then.' Sentence 3 ('Because she wants to pass her final exam') is a fragment — a dependent clause with no main clause. 'Resulting in excellent grades every semester' is also a fragment because it is a participial phrase with no subject or finite verb. (correct answer)
Explanation: When checking sentence boundaries, ask yourself two questions about every sentence: Does it have a subject and a finite (tensed) verb? And if it starts with a subordinating word like because, does it connect to a main clause? Answer D correctly identifies all three errors. Sentence 2 joins two independent clauses — "She goes to class every morning" and "she studies at the library for three hours" — using only a comma and the adverb then. An adverb cannot grammatically join two independent clauses, so this is a comma splice (a type of run-on). Sentence 3, "Because she wants to pass her final exam," opens with the subordinating conjunction because, making it a dependent clause. It has no main clause to attach to, so it floats alone as a fragment. Finally, "Resulting in excellent grades every semester" is a participial phrase — resulting is not a finite verb, and there is no subject, so it cannot stand alone as a sentence. Answer A correctly spots the fragment issues but misidentifies sentence 2 as simply a "run-on" without recognizing it specifically as a comma splice — and the fix it suggests, while reasonable, doesn't address the comma splice label accurately enough. Answer B makes two dangerous mistakes: calling comma splices "acceptable in informal writing" is misleading on an exam, and sentence 3 is absolutely a fragment regardless of whether it contains a subject and verb, because because makes it dependent. Answer C dismisses the comma splice entirely by claiming a comma before then is "always acceptable" — it is not — and wrongly treats a participial phrase as a complete sentence. Your strategy: memorize the three fragment triggers — subordinating conjunctions (because, although, since), participial phrases (resulting, having done), and missing subjects or verbs. If any of these appear alone, it's a fragment.

Question 5

A student wrote this paragraph:

Exercising regularly has many benefits for your health. For example walking for 30 minutes each day can lower your blood pressure. It also helps you sleep better at night. In addition to physical health exercise improves your mood and reduces stress. Therefore everyone should try to exercise at least three times per week.

The paragraph is missing commas after introductory elements. Which sentence correctly lists ALL the locations where a comma is needed after an introductory element?

  1. After 'For example' in sentence 2 and after 'In addition to physical health' in sentence 4 only. 'Therefore' in sentence 5 introduces the conclusion of the paragraph and functions as part of the main clause, so no comma is needed after it.
  2. After 'For example' in sentence 2 only. The phrase 'In addition to physical health' is part of the subject of sentence 4 and does not need a comma, and whether to use a comma after 'Therefore' is a stylistic choice.
  3. After 'For example' in sentence 2, after 'In addition to physical health' in sentence 4, and after 'Therefore' in sentence 5. Sentence 3 begins with the subject 'It' and has no introductory element, so it needs no change. (correct answer)
  4. After 'For example' in sentence 2, after 'better at night' in sentence 3 to separate the two ideas, and after 'Therefore' in sentence 5. Sentence 4 needs no comma because introductory prepositional phrases under five words are never set off by a comma.
Explanation: When you see a question about comma placement, start by identifying introductory elements — words, phrases, or clauses that come before the main subject and verb of a sentence. Standard grammar rules require a comma after these elements to signal where the introduction ends and the main clause begins. In this paragraph, sentence 2 begins with "For example," a transitional phrase — clearly introductory, clearly needing a comma. Sentence 4 opens with "In addition to physical health," a prepositional phrase that precedes the main subject "exercise" — another introductory element requiring a comma. Sentence 5 starts with "Therefore," a conjunctive adverb used to signal a conclusion — these always take a comma when they open a sentence. Sentence 3, however, begins directly with the subject "It," so there is no introductory element and no comma is needed. That pattern of reasoning confirms C as the correct answer. Choice A is wrong because it excludes "Therefore" in sentence 5. Conjunctive adverbs like therefore, however, and furthermore are classic introductory elements and always require a comma when they start a sentence — this isn't optional. Choice B is wrong on two counts: it misidentifies "In addition to physical health" as part of the subject (it's a prepositional phrase modifying the clause), and it treats the comma after "Therefore" as merely stylistic when it is actually required. Choice D invents a problem in sentence 3 — "better at night" is not an introductory element — and the claim that prepositional phrases under five words never need commas is an oversimplification, not a rule. Your takeaway: memorize the three main introductory element types — transitional words (therefore, however), prepositional phrases (in addition to…), and adverbial clauses — and always check whether a comma follows them.

Question 6

Read this student paragraph:

Marcus enjoys hiking on weekends he also likes to swim in the lake. The weather is usually warm in July and August. However it can get very cold at night so he always brings a jacket.

The paragraph contains punctuation errors. Which sentence-by-sentence analysis correctly identifies ALL punctuation problems?

  1. Sentence 1 is a run-on because two independent clauses are joined without a comma or conjunction. Sentence 3 needs a comma after 'However' because it is an introductory transition word, and needs a comma before 'so' because it joins two independent clauses. (correct answer)
  2. Sentence 1 needs a semicolon after 'weekends,' but sentence 2 and sentence 3 are both correctly punctuated and require no changes at all.
  3. Sentence 1 is a fragment because it is missing a subject. Sentence 3 needs a comma after 'However' but does not need any punctuation before 'so' since 'so' is a subordinating conjunction in this context.
  4. Sentence 1 needs a comma after 'weekends' but no other punctuation. Sentence 3 needs a comma after 'However' only, and the comma before 'so' is optional rather than required by standard paragraph writing conventions.
Explanation: When a question asks you to identify punctuation errors across multiple sentences, work through each sentence independently before checking which answer choice matches all your findings. Look at Sentence 1: "Marcus enjoys hiking on weekends he also likes to swim in the lake." Here, two complete thoughts — each with their own subject and verb — are smashed together without any punctuation or conjunction separating them. That makes it a run-on sentence. You could fix it with a period, a semicolon, or a comma plus a coordinating conjunction like and. Now look at Sentence 3: "However it can get very cold at night so he always brings a jacket." The word however is a transition word (also called a conjunctive adverb) that introduces the sentence, so it requires a comma after it. Additionally, so here is acting as a coordinating conjunction joining two independent clauses ("it can get very cold at night" + "he always brings a jacket"), which means it requires a comma before it. Answer A correctly identifies both of these issues. Answer B is wrong because it ignores all the problems in Sentence 3 entirely. Answer C is wrong on two counts: Sentence 1 has a subject (Marcus), so it is not a fragment — it's a run-on — and so in this context is a coordinating conjunction, not a subordinating one, so the comma before it is required, not optional. Answer D is wrong because a comma alone after weekends does not fix a run-on, and the comma before so is grammatically required, not optional. Your study tip: memorize the FANBOYS (For, And, Nor, But, Or, Yet, So) as coordinating conjunctions — they always need a comma before them when joining two independent clauses.

Question 7

Read the following two versions of the same paragraph:

Version 1: We visited Paris last summer. The eiffel Tower was incredible! we also saw the Louvre museum and tasted amazing french food. it was the best trip of our lives.

Version 2: We visited Paris last summer. The Eiffel Tower was incredible! We also saw the Louvre Museum and tasted amazing French food. It was the best trip of our lives.

How many individual capitalization corrections were made when revising Version 1 to produce Version 2?

  1. Three corrections: 'eiffel' → 'Eiffel,' 'we' → 'We,' and 'it' → 'It.' The words 'french' and 'museum' did not require changes because adjectives and generic location words are not capitalized.
  2. Four corrections: 'eiffel' → 'Eiffel,' 'we' → 'We,' 'french' → 'French,' and 'it' → 'It.' The word 'museum' in 'Louvre museum' did not need to be capitalized because 'museum' is a common noun describing a type of building, not part of the proper name.
  3. Five corrections: 'eiffel' → 'Eiffel,' 'we' → 'We,' 'museum' → 'Museum' (part of the official proper name 'Louvre Museum'), 'french' → 'French' (proper adjective), and 'it' → 'It' (sentence-initial word). (correct answer)
  4. Six corrections: 'eiffel' → 'Eiffel,' 'Tower' → 'tower' (lowercase), 'we' → 'We,' 'Louvre' → 'louvre' (lowercase), 'french' → 'French,' and 'it' → 'It.' Landmark component words like 'Tower' should not be capitalized on their own.
Explanation: When editing for capitalization, you need to apply several rules at once: capitalize the first word of every sentence, capitalize proper nouns (specific names of people, places, and things), and capitalize proper adjectives (adjectives formed from proper nouns, like nationalities). Carefully comparing Version 1 to Version 2 reveals five distinct corrections, making C the right answer. First, "eiffel" becomes "Eiffel" — it's part of the proper name "Eiffel Tower." Second, "we" becomes "We" — it opens a new sentence. Third, "museum" becomes "Museum" — this one trips many students up. "Louvre Museum" is the official, formal name of the institution, so "Museum" is part of the proper noun and must be capitalized. Fourth, "french" becomes "French" — nationality adjectives like French, Italian, and Spanish are always proper adjectives and require capitalization. Fifth, "it" becomes "It" — again, a sentence-opening word. Choice A incorrectly claims only three corrections were needed, wrongly dismissing both "french" and "museum." Choice B gets four corrections right but makes the mistake of treating "Museum" as a generic common noun. While "museum" alone can be a common noun, when it's part of an institution's official title ("Louvre Museum"), it becomes part of the proper name and is capitalized. Choice D invents errors by suggesting "Tower" and "Louvre" should be lowercased — both are correctly capitalized in the original and remain so in Version 2, so they aren't corrections at all. As a study tip, always ask yourself: Is this word part of an official, specific name? If yes, capitalize every meaningful word in that name, not just the first one.

Question 8

A student wrote the following paragraph for a composition class:

My neighborhood is very busy. There are many stores, restaurants, and coffee shops nearby, I walk to the market every Saturday morning. The market sells fresh vegetables, fish, and bread. Which I buy for the whole week.

The paragraph contains both a comma splice and a sentence fragment. Which answer correctly identifies BOTH errors and their locations?

  1. The comma splice is in sentence 2 (a comma joins two independent clauses without a conjunction), and the fragment is the last 'sentence' ('Which I buy for the whole week') because it begins with a relative pronoun and has no independent clause. (correct answer)
  2. The comma splice is in sentence 3 (the list of items uses too many commas), and the fragment is sentence 1 ('My neighborhood is very busy') because it is too short to be a complete sentence in a paragraph.
  3. The comma splice is in sentence 2, and the fragment is sentence 3 ('The market sells fresh vegetables, fish, and bread') because it is missing a direct object after 'sells.'
  4. The comma splice occurs between sentences 3 and 4 because the period should be replaced by a comma, and the fragment is sentence 2 because it connects two ideas that should be two separate sentences joined by a period.
Explanation: When editing writing, two of the most common sentence-level errors are comma splices and fragments, and recognizing them requires understanding what makes a complete sentence in the first place. A comma splice happens when two complete, independent thoughts are joined with only a comma — no coordinating conjunction (like and, but, or so) and no period. Look at sentence 2: "There are many stores, restaurants, and coffee shops nearby, I walk to the market every Saturday morning." After "nearby," you have a full sentence — then a comma — then another full sentence. That comma is doing a job it can't do alone. A fragment, by contrast, is a group of words that looks like a sentence but is missing something essential. The final "sentence" — "Which I buy for the whole week" — begins with a relative pronoun (which) and depends on the sentence before it to make sense. It has no independent subject-verb core standing on its own. Answer A correctly identifies both: the comma splice in sentence 2 and the fragment at the end. Answer B is wrong on both counts — commas in a list are grammatically correct, and a short sentence like "My neighborhood is very busy" is perfectly complete. Answer C is wrong because sentence 3 does have a direct object ("fresh vegetables, fish, and bread"), making it a valid sentence, not a fragment. Answer D gets both errors backwards, misidentifying which sentence contains which problem. A useful tip: when checking for fragments, ask yourself, "Can this stand alone as a complete thought?" If it starts with which, because, or although and has nothing before it, it almost certainly cannot.

Question 9

An ESL student wrote this paragraph:

I love cooking italian food at home. my favorite dish is pasta with tomatoes and garlic. I learned the recipe from my grandmother in Rome. she always said fresh ingredients are the secret.

The paragraph has errors in both capitalization and sentence boundaries. Which of the following statements is TRUE about the paragraph?

  1. There are two capitalization errors: 'italian' should be 'Italian,' and 'my' at the start of sentence 2 should be 'My.' There are no sentence boundary errors in the paragraph.
  2. There are three capitalization errors: 'italian,' 'my,' and 'she' all need to be capitalized. There are no run-on sentences or fragments in the paragraph. (correct answer)
  3. There are two capitalization errors: 'italian' and 'my.' There is also one sentence boundary error because 'she always said fresh ingredients are the secret' is a run-on sentence that needs to be split.
  4. There is only one capitalization error: 'she' should be 'She.' The word 'italian' does not need to be capitalized because it describes food, not a person, and adjectives from country names are optional to capitalize.
Explanation: When editing for grammar, it helps to check two things separately: capitalization rules and sentence structure. These are easy to mix up, but keeping them distinct makes the editing process cleaner. In English, you must capitalize the first word of every sentence AND proper adjectives — adjectives formed from the names of countries, nationalities, or languages. In this paragraph, "italian" describes a type of food rooted in a national identity, so it must be capitalized as "Italian." Additionally, "my" begins the second sentence, and "she" begins the fourth sentence — both require capitalization as sentence-opening words. That gives you exactly three capitalization errors, and none of the sentences are run-ons or fragments. Each sentence expresses one complete thought and ends with a period. Answer B is correct. Answer A misses "she" as a capitalization error, so it undercounts. It correctly identifies no sentence boundary errors, but the incomplete capitalization count makes it wrong. Answer C correctly identifies "italian" and "my" but falsely claims "she always said fresh ingredients are the secret" is a run-on. That sentence has one subject and one verb — it is a complete, grammatically correct sentence with no boundary error. Answer D makes a dangerous claim: that adjectives derived from country names are "optional" to capitalize. This is false. Words like Italian, French, Chinese, and Mexican are always capitalized in standard English because they derive from proper nouns. A useful study tip: whenever you see an adjective describing something tied to a nationality or country — food, language, culture — treat it like a proper noun and capitalize it. This rule catches many overlooked errors on grammar exams.

Question 10

Read the following paragraph draft written by an ESL student:

(1) My sister lives in chicago. (2) she works at a hospital every day. (3) The doctors and nurses are very kind to her. (4) last year, she received an award for her hard work. (5) She was very happy.

Which revision correctly fixes ALL the capitalization errors in the paragraph without introducing any new errors?

  1. Change 'chicago' to 'Chicago' in sentence 1, and change 'she' to 'She' in sentence 2, and change 'last' to 'Last' in sentence 4. (correct answer)
  2. Change 'chicago' to 'Chicago' in sentence 1, change 'she' to 'She' in sentence 2, change 'last' to 'Last' in sentence 4, and also capitalize 'Doctors' and 'Nurses' in sentence 3.
  3. Change only 'chicago' to 'Chicago' in sentence 1 because it is the only proper noun, and leave all other words as they are in the paragraph.
  4. Change 'chicago' to 'Chicago' in sentence 1 and change 'last' to 'Last' in sentence 4, but leave 'she' in sentence 2 lowercase because it follows a period inside the same paragraph.
Explanation: When checking capitalization in English, you need to remember two main rules: (1) always capitalize the first word of a sentence, and (2) always capitalize proper nouns — specific names of people, places, and things. Looking at the paragraph, there are exactly three errors. In sentence 1, "chicago" should be "Chicago" because it is the name of a specific city — a proper noun. In sentence 2, "she" should be "She" because it is the first word of a new sentence, and every sentence must begin with a capital letter. In sentence 4, "last" should be "Last" for the same reason — it opens a new sentence. Answer A makes all three of these corrections and nothing more, making it the right choice. Answer B goes too far. It correctly fixes the three real errors but then also capitalizes "Doctors" and "Nurses" in sentence 3 — which is wrong. These are common nouns used in a general sense, not titles directly before a name (like "Dr. Smith"), so they should stay lowercase. Introducing unnecessary changes like this is a common trap. Answer C only fixes "Chicago" and ignores the two sentences that begin with lowercase letters. Proper noun capitalization is just one part of the rule — sentence-starting capitalization is equally important. Answer D skips "she" in sentence 2, claiming it stays lowercase because it's within a paragraph. This is a misconception — paragraph breaks don't matter. Every new sentence starts with a capital letter, always. A helpful habit: read each sentence in isolation and ask yourself, Does this sentence start with a capital? Are all place/person names capitalized?