题目内容
The telephone rang but I didn’t hear it. I _________ asleep.
| A.must be | B.ought to have been | C.should be | D.must have been |
D
解析
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题目内容
The telephone rang but I didn’t hear it. I _________ asleep.
| A.must be | B.ought to have been | C.should be | D.must have been |
D
解析