Sally took a photo of her friends while they computer games. A. play B. are playing C. have played D. were playing 题目和参考答案——青夏教育精英家教网—

题目内容

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

A. play B. are playing C. have played D. were playing

【答案】D

【解析】本题考查动词的时态。根据句意“塞丽为朋友照相”和下文句意“当他们玩电脑游戏时”可知，两个动作同时发生，while后常接进行时。故选D。

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