题目内容
—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
A?
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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题目内容
—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
A?
since从句中动词若为延续性动词,则意为“自从不……以来”。?