答案：Was she doing her homework at seven o'clock last night?
在某个时间点一般用进行时,表示某个时刻某人在干什么.
at seven o'clock last night昨晚7点钟,所以应该用过去进行时.
Did she do her homework last night?(用at seven o'clock last night代替last night)
Did she do her homework last night?(用at seven o'clock last night代替last night)
英语人气：569 ℃时间：2019-10-17 01:16:46
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