题目内容
2．When you _____me last night，I _____the piano．（ ）| A． | were calling； was playing | B． | were calling； played | ||
| C． | called； played | D． | called； was playing |
分析 当你昨晚给我打电话的时候，我正在弹钢琴．
解答 答案：D．
根据last night，可知意思是昨天晚上，是一个过去的时间，所以句子应该用一般过去时；再根据 when引导的一般过去时的时间状语从句推断主句描述的是过去某个时间正在发生的动作，故用过去进行时态，它的构成为：主语+was/were+V-ing形式，主语是I，be动词应该用was．故选D．
点评 本题主要考查动词时态，判断动词的时态，要通过所给的时间状语或上下文等去判断动词的时态．
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