Question

Don’t talk loudly at the meeting. If you ________, you will have to leave.
A. do                      B. are                       C. did

Answer 1

A

考查状语从句的时态 当主句为将来时态是，if引导的状语从句中用一般时态代替将来时，而这里需要助动词，不是系动词，所以选择答案A。