—Does your uncle still smoke?—He given it up. It’s two years ever since he .A. can’t have;

—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

A. can’t have; smoked(答案→)B. may have; smokedC. should have; has smokedD. should have; didn’t smoke解析： 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”，此句型中用延续性动词表示动作停止。

和我的回答一样，看来我也对了

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