This sentence misuses the word "affect." "Affect" is a verb meaning to change. It is clear that the results of the changes (hence, a noun) is meant in this sentence. "Effect" is the correct choice, meaning a change/result of something. No other changes are necessary. The correct choice is, "The effects of the changes saved."

This sentence contains an error in word choice. The word "complement" means to complete. It is clear from the context of the sentence that Kendra intends to give Michael recognition for his effort. The choice that means this is "compliment (with an "i")."

The use of the preposition "for" in this sentence is incorrect, as it is not the common preposition matched with disapproval. The commonly used word is "of," which more properly conveys the connection to disapproval. The only answer choice which makes this change is "they had shown strong disapproval of her choice."

An illusion is a hallucination, an image that isn’t really there. An allusion is a reference or citation, especially to/from another text. Also, there is a split infinitive; the adverb “tactfully” must be moved elsewhere in the sentence so the verb “to reference” is kept together.

This sentence misuses the word "sit." The word "sit" means to rest, remain, or place one's self. The appropriate word here is "set," which means to put/place something. No additional changes are necessary. The phrase "Before she went running" is an example of an introductory statement, explaining information necessary to the context of the sentence, but outside of the main sentence, grammatically. These types of phrases must be followed by a comma in order to separate them from the rest of the sentence. The rest of the sentence is one independent clause. The correct choice is, "Before she went running, Jennifer made sure to set the bills on the counter so that she would not forget to attend to them when she returned."

The use of the phrase "for all intensive purposes," as it is in this sentence, is incorrect. The idiom is actually "for all intents and purposes," which indicates that every element was considered. "For all intents and purposes, the new plan was essentially the same," is the correct answer choice as it is the only one that uses the correct idiom.

The use of the preposition "for" in this sentence is incorrect, as it is not the common preposition matched with disapproval. The commonly used word is "of," which more properly conveys the connection to disapproval. The only answer choice which makes this change is "they had shown strong disapproval of her choice."

This sentence misuses the word "it's." It's is a contraction for "it is," but it is clear from the context of the sentence that what is needed here is the possessive form of the word: its. The possessive form of "it" does not include an apostrophe before the s. Furthermore, the form " its' " is not an actual form of "it" - it is not a word - and no comma is necessary in this sentence. The best choice is, "with the introduction of its iPhone."

An illusion is a hallucination, an image that isn’t really there. An allusion is a reference or citation, especially to/from another text. Also, there is a split infinitive; the adverb “tactfully” must be moved elsewhere in the sentence so the verb “to reference” is kept together.

The use of the phrase "for all intensive purposes," as it is in this sentence, is incorrect. The idiom is actually "for all intents and purposes," which indicates that every element was considered. "For all intents and purposes, the new plan was essentially the same," is the correct answer choice as it is the only one that uses the correct idiom.