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最佳答案：The students pretented to be reading books when the teacher came ln.
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最佳答案：when your English teacher came in yesterday,what were you doing?这是一个when引导的时间状语从
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最佳答案：your letter touched me very much.he doesn't care/mind teacher‘s criticism.TOM pr
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最佳答案：What were you doing when the teacher came in?I was talking with my friend.What w
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最佳答案：what were you doing at six o'clock last night?we were washing clothes.their teac