题目内容
I got up early this morning,but I ________ so because I was not on duty today.
A.mustn’t have done B.needn’t have done
C.didn’t need to do D.can’t have done
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题目内容
I got up early this morning,but I ________ so because I was not on duty today.
A.mustn’t have done B.needn’t have done
C.didn’t need to do D.can’t have done