-A man answered the phone.I suppose it was her husband. -It her husband.He has b
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-A man answered the phone.I suppose it was her husband.
-It ________ her husband.He has been dead for ages.
[]A.mustn’t be
B.couldn’t have been
C.may not have been
D.mustn’t have been
试题答案
答案:B
解析:那不可能是她的丈夫,因为他去世有好几年了。对过去的事情进行推测,“当时不可能”:couldn’t/can’t have done |