...相互替换的,如as merry as a
cricket(非常快活)、as happy as the day is long(非常快乐)、Merry is the
feast making till we come to the reckoning(欢乐在先,代价在后)、Happy is he that chastens
himself.(幸福归于能磨炼自己的人。)等。此外,一些...
题目:He _____ at the meeting this morning. He
was in hospital at the time.A. couldn't have
spokenB. mustn't have spokenC. shouldn't have spokenD. needn't have spoken我选择了mustn't have spoken,而正确答案是A。并且给出的解析是:1.没有mustn't have done 这个结构。2....
...那就是其中的不定式可以用完成式吗?比较:It was kind of them to help me. It was kind of them to have helped me. It was nice of you to come. It was nice of you to have come. It was stupid of you to leave the door unlocked.It was stupid of you to have left the do...