In this sentence, "that" should be replaced with "which" because the phrase it introduces ("has orange and white stripes") is non-essential—that is, the phrase can be removed from the sentence without altering its meaning. "That" should be used with essential words or phrases, meaning that such phrases mustbe in the sentence for a reader's to understand it properly. An example of an essential phrase would be "The painting that the thief stole last night is still missing." To say "The painting is still missing" would leave out essential information - that it's missing because a thief stole it last night.

In this sentence, the verb does not agree with the subject. “Were” should go with a plural subject, but here the subject “the sloth” is singular. The corrected sentence reads, "The sloth, out of all the zoo animals, was what fascinated Peter the most."

This sentence's error has to do with the homonyms "to," two," and "too." The "two" in "two large slices of chocolate cake" is correct; this form of the word refers to the whole number greater than one but less than three. The "to" in "to her friend's birthday party" is also correctly used; this "to" is being used as a preposition. The "to" in "to make odd gurgling noises" is also correctly used because it is part of an infinitive verb, "to make." The "to" in "eaten to much" is incorrect, however; to correct the sentence, one would need to change this "to" to "too," which is used to mean in excess or in an amount that is greater than what is needed or desired.

In this sentence, the verb does not agree with the number of the subject. The subject is singular (the administrative staff is in a modifying phrase and doesn’t count), so the correct verb form would be “is.” The corrected sentence reads, "The events director, along with the administrative staff, is responsible for making sure the entire program runs smoothly."

“Wet” means to moisten or dampen. “Whet,” however, means to stimulate or awaken. In this case, we are looking for the verb “whet.”

This sentence uses the gerund “being” when the infinitive “to be” is more appropriate. The corrected sentence reads, "Not wanting to be behind on her work, Maria furiously finished editing the pile of documents on her desk."

The sentence uses the phrase "seven toes on each feet," and this is incorrect because "each" is used to describe a singular noun, but "feet" is plural. Changing "feet" to "foot" corrects this error.

It is not necessary to use the gerund “attempting” in this sentence because the noun “attempt” already exists. The corrected sentence reads,"Despite her best intentions, Suzy’s attempt to throw a surprise birthday party was a complete disaster."

This sentence uses a participle (“risen”) after “to.” Here, an infinitive is correct. If you read the sentence as it is written out loud, it will probably sound incorrect. The corrected sentence reads, "The sense of expectation in the air was almost unbearable; the curtain was supposed to rise at half past six, and it was almost seven."

This sentence uses a participle (“risen”) after “to.” Here, an infinitive is correct. If you read the sentence as it is written out loud, it will probably sound incorrect. The corrected sentence reads, "The sense of expectation in the air was almost unbearable; the curtain was supposed to rise at half past six, and it was almost seven."