—Do you smoke?—No，I don’t.It’s two years since I .A. smokedB. have smokedC. has smokedD

发布时间：2020-08-17 13:35:53

—Do you smoke?
—No，I don’t.It’s two years since I     .
A. smoked
B. have smoked
C. has smoked
D. don’t smoke

网友回答

(答案→)A. smoked
B. have smoked
C. has smoked
D. don’t smoke
解析：since从句中动词若为延续性动词，则意为“自从不……以来”。
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