Question

【题目】- What have you been doing since we from Northwest University?

- I’ve been doing business.

A. graduated B. have graduated

C. had graduated D. graduate

Answer 1

【答案】A

【解析】考查动词时态。上句：自从我们从西北大学毕业你一直在做什么？下句：我一直在做生意。Since自从---以来，引导时间状语从句，主句用现在完成时态或现在完成进行时态从句用一般过去时态。故选A。