题目内容
–What do you think the noise was?
--It ___________ a cat.
A.may be | B.might be | C.can have been | D.might have been |
D
解析
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题目内容
–What do you think the noise was?
--It ___________ a cat.
A.may be | B.might be | C.can have been | D.might have been |
D
解析