He should have known the police wouldn't allow it but he didn't.

问题描述:

He should have known the police wouldn't allow it but he didn't.
He should have known the police wouldn't allow it_______.
A.and he did B.but he didn't C.but he couldn't D.but he had
新概念英语第二册中65课的题,为什么选择B项呢?如何翻译这句话?

从should have done和 the police wouldn't allow的时态来看.should have done是对过去某一情形的虚拟.表示他本应该知道.(也就是说他不知道),"他本应该知道的"表示对实际情况虚拟,而实际情况是什么,是"他不知道",实...