---Do you really know at this time yesterday? ---Sorry, I don’t know. A. what did they do B. what they did C. what were they doing D. what they were doing 【查看更多】
题目列表(包括答案和解析)
—Do you really know _____ at this time yesterday? — Sorry, I don't know.
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A. what did they do B. what they did C. what were they doing D. what they were doing
