I fell and hurt myself while I( )tennis.

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问题 I fell and hurt myself while I( )tennis.

选项 A、was playing
B、am playing
C、play
D、played

答案A

解析 本题考查动词时态的用法。在过去的某一动作发生的同时,另一个动作也在发生,此时第二个动作常用过去进行时来表示,连接词通常是while,如:They went out while we were playing.我们正在玩的时候,他们出去了。
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