Question

【题目】Bob a lot since we met last year.
A． changes B． changed

C． has changed D． will change

Answer 1

【答案】C

【解析】句意：自从我们去年见过之后，鲍勃改变了很多。句中有since引导的时间状语从句，故主句用现在完成时。故选C。