Question

Which sentence uses a verb that agrees with its pronoun subject? A. You was a great help to us yesterday. B. You plays the piano well. C. I were the leader of the blue team at camp. D. You are a careful reader.

Answer 1

the pronoun "you" needs a plural verb, yet in options A and B it comes with a verb in singular form: this is not correct.

in C the mistake is that "I" needs a verb in the singular form, which it does not have.

The correct sentence and the right answer is D: "you are" is correct!