It was impossible that he the train, for he had started out very early. A．could

It was impossible that he ______ the train, for he had started out very early.
A．could have missed B．must have missed C．should have missed D．should miss

试题答案

C

本句带有惊讶之意，故从句须用should型虚拟语气。但由于是过去的事情所产生的惊讶，所以用should+不定式完成式。