Question

【题目】-Does your uncle still smoke?

-He __________ given it up. It's two years ever since he __________.

A. can't have; smoked

B. may have; smoked

C. should have; has smoked

D. should have; didn't smoke

Answer 1

【答案】B

【解析】答句句意：他可能戒烟了，他不吸烟有两年了。may have done表示“可能已经做某事了”；第二空表示“他不吸烟有两年了”。