Question

—What did you say to your sister? I saw her crying in the room.
— It _________ my fault. I just said hello to her when I met her, nothing else.

A．must have been	B．can’t have been
C．oughtn’t to be	D．should have been

Answer 1

B

試題分析：考查情態動詞。Can’t have done不可能做某事。句意：——你對你姐姐說了什么？我看到她在房間里哭�！�—不可能是我的錯吧。當我遇到她的時候，我只是向她問候了一下，其它什么也沒說。故B正確。