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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
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—— Do you still remember the day when we went to the Great Wall?
—— I can’t remember it well, but______sometime last autumn?

A.might it be B.could it have been C.could it be D.must it have been
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——Doyoustillrememberthedaywhen