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I don’t smoke now, but I _______ for more than twenty years.
A.smokedB.was smokingC.have smokedD.had smoked
A

试题分析:考查时态:句意:我现在不抽烟了,但是我抽烟20多年。因为说话人现在不抽烟了,所以抽烟的动作是发生在过去的,用一般过去式,选A.
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