Sallytookaphotoofherfriendswhilethey       computergame...

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问题详情:

Sallytookaphotoofherfriendswhilethey       computergame...

Sally took a photo of her friends while they        computer games.

A. play                                                B. are playing

C. have played                                      D. were playing

【回答】

D  句意:当他们在玩电脑游戏时, 萨莉给她的朋友们拍了一张照片。这是含有while引导的时间状语从句的主从复合句, 主句用了一般过去时, 时间状语从句也应该用相应的过去时态。由句意可知“拍照”这个动作发生时, 另一个动作“玩电脑游戏”正在进行, 故用过去进行时。

知识点:动词时态

题型:选择题

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