Might I take this scat? 我可以坐这个座位吗? must用法举例 表示必须要做某事 (在该用法中.must相当于have to,表示有义务做某事或采取某些行动很有必要。)表示推测a During the workwe...
should have done ought to have done shouldn’t have done ought not to have done needn’t have done could have done (二)学位英语真题汇编 1、I’m feeling sick. I ___ so much chocolate. A. needn’t have eaten B. couldn’t have eaten C. mustn’t have e...
could have done "本来可以……"(表示过去没有实现的可能)。 might have done "本来可能……;本来应该或可以做某事"(实际没有发生;含有轻微的责备语气。 should/ought to have done "本来该做某事"(而实际未做) should not/ought not to have done "本来不该做"(实际...
ought to have done shouldn't have done ought not to have done needn't have done could have done (二)三级试题汇编 1、I'm feeling sick. I ___ so much chocolate. A. needn't have eaten B. couldn't have eaten C. mustn't have eaten D. shouldn't have eate...
might have done 除了能够表推测,还能表示过去本来可以做而实际并没有做。这时带有轻微的责备之意。例如: The proposal might have been refused. 这个建议本该拒绝的。(有轻微的责备之...
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