1. Choose the sentence that has correct subject-verb agreement.

A. Three passengers on this flight is afraid of flying.
B. The flight attendants on the plane is friendly and reassuring.
C. The food on most flights is both appealing and tasty.
D. The most beautiful sight during the flight were the mountains.

I'm stuck between C and D.

2. Choose the sentence that had correct subject-verb agreement.

A. The waiters, as well as the hostess, receives good tips.
B. the classes have all agreed to collect their essays into a single volume.
C. In his comedy routines, David frequently employs hyperbole, one of the figures of speech that is in common use today.
D. This is one of those video games that is easy to learn.

I'm stuck between B and C.

1. Choose the sentence that has correct subject-verb agreement.

C. The food on most flights is both appealing and tasty.
D. The most beautiful sight during the flight were the mountains.

I'm stuck between C and D.
You're right to eliminate A and B. Now ... identify the subjects in C and in D. Then identify the main verb. What do you notice. (Be aware that the subjects come BEFORE the verbs in both of these sentences.)

2. Choose the sentence that has correct subject-verb agreement.

B. the classes have all agreed to collect their essays into a single volume.
C. In his comedy routines, David frequently employs hyperbole, one of the figures of speech that is in common use today.
D. This is one of those video games that is easy to learn.

I'm stuck between B and C.
Be aware that subject-verb agreement occurs in all clauses, not just the main clause.

B. Classes ... have

C. ~~>"one of the figures of speech that is in common use today."

D. ~~>"one of those video games that is easy to learn."

Which one has correct subj-verb agreement?

I think #1 is D because "were" is for multiple entities, which are mountains in this case.

I think #2 is C.

Am I right?

No, sorry. The subject in D is "sight" not "mountains."

And the correct answer for #2 is B.

[Would you say, "those video games is easy to learn"? Or "the figures of speech is in common use today"?]

Okay thanks, I understand.

Those last two are tricky, I think. Our inclination is to let "one" be the subject in each case, but "that" is physically closer to the word it's referring to (games, figures), and those antecedents determine whether "that" is singular or plural.

1. Let's analyze each option:

A. "Three passengers on this flight is afraid of flying."
The subject "three passengers" is plural, but the verb "is" is singular. This sentence does not have correct subject-verb agreement.

B. "The flight attendants on the plane is friendly and reassuring."
The subject "flight attendants" is plural, but the verb "is" is singular. This sentence does not have correct subject-verb agreement.

C. "The food on most flights is both appealing and tasty."
The subject "food" is singular, and the verb "is" is also singular. This sentence has correct subject-verb agreement.

D. "The most beautiful sight during the flight were the mountains."
The subject "the most beautiful sight" is singular, but the verb "were" is plural. This sentence does not have correct subject-verb agreement.

Therefore, the sentence that has correct subject-verb agreement is C: "The food on most flights is both appealing and tasty."

2. Let's analyze each option:

A. "The waiters, as well as the hostess, receives good tips."
The subject "waiters" is plural, but the verb "receives" is singular. This sentence does not have correct subject-verb agreement.

B. "The classes have all agreed to collect their essays into a single volume."
The subject "classes" is plural, and the verb "have" is also plural. This sentence has correct subject-verb agreement.

C. "In his comedy routines, David frequently employs hyperbole, one of the figures of speech that is in common use today."
The subject "one of the figures of speech" is singular, but the verb "is" is also singular. This sentence has correct subject-verb agreement.

D. "This is one of those video games that is easy to learn."
The subject "one of those video games" is singular, and the verb "is" is also singular. This sentence has correct subject-verb agreement.

Therefore, the sentence that has correct subject-verb agreement is D: "This is one of those video games that is easy to learn."