Which of the following sentences uses the active voice?

Which of the following sentences uses the active voice?

(A. Is, B. Are) New York and Chicago the two largest cities in the United States?

A person needs to visit (A. his or her, B. their) dentist at least once a year to maintain good oral health.

(A. Do, B. Does) everyone in the band play well?

Each person must be careful about (A. his, B. their) choice of words to avoid hurting the feelings of others.

A person needs to visit (A. his or her, B. their) dentist at least once a year to maintain good oral health.

(A. Is, B. Are) New York and Chicago the two largest cities in the United States?

Two cups of sugar (A. seems, B. seem) too much for that recipe.

The dogs in the pound and their owners (A. was, B. were) reunited after the hurricane last summer.