题目内容
My face ________ paleimmediately I walked into the room,for the first man I met asked me.“Are you feeling all right”?
- A.must be
- B.could have been
- C.must have been
- D.had to be
C
据句意此处为推测,“肯定、已经……”,故用must have done形式。
据句意此处为推测,“肯定、已经……”,故用must have done形式。
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