—Doesyourunclestillsmoke?—He

问题详情：

—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

【回答】

B

知识点：虚拟语气与情态动词

题型：选择题