问一道情态动词表推测的单选题At the moment yesterday, you _____.A. must be

问一道情态动词表推测的单选题
At the moment yesterday, you _____.
A. must be sleeping B. must sleep
C. must have been sleeping D. must sleeping

选哪个?为什么呢?
清影独舞 1年前 已收到2个回答 举报

lyb1125 幼苗

共回答了21个问题采纳率:85.7% 举报

考点must表示对过去某时正发生的事情的推测,must 后面要接不定式的完成进行式。

  ---Why didn't you answer my phone call?
  ---Well, I must have been sleeping, so I didn't hear it.
现在本题答案就明晰了 是C

1年前

2

zydchm 幼苗

共回答了19个问题采纳率:78.9% 举报

D
首先,题干告诉我们应该用过去进行时:was/were doing sth.
但这里有must,must的固定搭配是must be doing sth.
故选D

1年前

2
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