—Does your father smoke?
— ,it's 2 years since he ．
A. Yes; smoked
B. No; smoked
C. Yes; smokes
D. No; has smoked
网友回答
A. Yes; smoked
(答案→)B. No; smoked
C. Yes; smokes
D. No; has smoked
解析：考查情景交际：先看第二空since后面用过去时，排除CD，问句：你爸爸抽烟吗？答语， No, 表示“不抽烟”，这和 it’s 2 years since he smoked “他已经两年没抽烟了”意思就一致了。因为在It.....since.... 句型中，如果since 从句是延续性动词，就得从延续性动词所表动作结束的时候算起。选B。