Jack doesn’t smoke now, but he ______ for almost twenty years.A．smokedB．was smok
题型：不详难度：来源：
Jack doesn’t smoke now, but he ______ for almost twenty years.| A．smoked | B．was smoking | C．has smoked | D．had smoked |
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答案
| A |
解析
试题分析：考查时态。本题特别容易错选C项。考生会根据for twenty years认为现在现在完成时。实际上本题与前句的now形成对比。句意：Jack现在不抽烟。但是他以前抽了几乎20年。是对以前发生的事情的描述，故使用过去时。
点评：本题的时态是构成一个对比的关系，是现在与过去的对比，所以前半句使用现在时，后半句使用过去时。 |
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