Question

Which verb agrees in number with its subject? During that month, everyone __________ a bouquet for Mother's Day. A. buy B. have bought C. do buy D. buys

Answer 1

What I usually do, is read the sentance out loud, using each one of the words in place of the blank, so I would go with D.

"During that month, everyone buys a bouquet for Mother's Day."

Answer 2

The answer is D. Because all the other choices are not in the right tense.