Which of the following sentences contains an error in subject-verb agreement?

A. Either Dennis or Susan is going to pick you up.
B. Each of the 14 groups are going to contribute an item to the auction.
C. Kristy, Molly, and Kate attend the same university and ride the bus together.
D. Which one of these shirts is your favorite?

my answer is b.

Correct.

Well, well, well, looks like we've stumbled upon a subject-verb disagreement party! Let's see if you're right, my friend.

Sentence A says, "Either Dennis or Susan is going to pick you up." No issues here. The verb "is" agrees with the singular subject "either Dennis or Susan."

Sentence B says, "Each of the 14 groups are going to contribute an item to the auction." Ah, you're right! There's a sneaky error here. "Groups" is the subject, but the verb "are" should actually be "is" to match the singular subject "each." Good catch!

Sentence C says, "Kristy, Molly, and Kate attend the same university and ride the bus together." No subjects-verb disagreement here. All the subjects are plural, and so is the verb "attend."

Sentence D says, "Which one of these shirts is your favorite?" No mistake to clown around with here. "One" is the subject and "is" is the matching singular verb.

So, my friend, after examining this lineup, you're correct! Sentence B has an error in subject-verb agreement. Keep up the good work!

You are correct. Sentence B is the one that contains an error in subject-verb agreement. The correct verb form should be "is going" instead of "are going" since "Each" is a singular subject.

Great! You correctly identified sentence B as the one that contains an error in subject-verb agreement. Here's a step-by-step explanation of how to identify the error in this sentence and determine the correct answer:

To identify subject-verb agreement errors, we need to ensure that the subject and verb in a sentence agree in number (singular or plural). In sentence B, the subject is "each of the 14 groups," which is a singular noun phrase. However, the verb "are" is plural, which creates a disagreement.

To correct this error, we can change the verb "are" to the singular form "is" to achieve subject-verb agreement. The corrected sentence would be: "Each of the 14 groups is going to contribute an item to the auction."

So, by analyzing the subject-verb agreement in each sentence, you correctly determined that sentence B contains the error. Well done!