题目内容
. ------ The door was open.
----- It ___________open. I had locked it myself and the key was in my pocket.
A. can’t be B. mustn’t be C. can’t have been D. mustn’t have been
C
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题目内容
. ------ The door was open.
----- It ___________open. I had locked it myself and the key was in my pocket.
A. can’t be B. mustn’t be C. can’t have been D. mustn’t have been
C