Jane ___ have come to the party,but she ___ not find the exact timea.could; could b.should; could c.might; could 选A 这几个意思感觉差别不大,在这怎么分辨?觉得B也可以呀,should不是表示本该.,而could是本能够.的么?B,C怎么错?

问题描述:

Jane ___ have come to the party,but she ___ not find the exact time
a.could; could b.should; could c.might; could
选A 这几个意思感觉差别不大,在这怎么分辨?
觉得B也可以呀,should不是表示本该.,而could是本能够.的么?B,C怎么错?

should have done 虚拟语气固定用法,表示本该做而没做。这句话的前半句可以翻译成 Jane本该来参加这次聚会,但没来。
could 表示一种推测而已。

could have done(本能够)
should have done(本应该)
might have done(本可能)
would have done(本愿意)
选B也说得通,但A更好。

A could have done 本可以.后面的could是对过去的一种说明.
不宜选B,should have done 本该.
带有责怪的口吻,而这句后面由明确的解释“她找不到合适的时间”,所以并不是责怪的语气,所以排除B.