成人高考学位英语备考练习:非谓语动词 一、不定式 (一)基本结构 to do to be doing to have done to be done to have been done 学位英语真题汇编 1、Judging from his manners at the party, he does
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"(实际却做过了,含有责备语气) needn't have done "本来不必做"(但是...
3. 现在完成时(have done) 用法: A) 表示动作到现在为止已经完成或刚刚完成。 例:I bought a new house, but I ___ my old one yet, so at the moment I have two houses. A) didn't sell B) sold C) haven't sold D) would sell 答案是C) haven't sold。 B) 表示从过...
If I were you, I would work harder. 三、现在完成时(动作始于过去,持续到现在,并可能继续下去) has / have done →has / have been done 常搭配的时间状语:lately, recently, in/over/during the past/last few days, these days, so far, by now, up to now, till ...
34.All that can be done ___. A)have been done B)have done C)has done D)has been done 35.A person beating a drum or blowing a trumpet causes vibrations in the air ___ sound waves. A) calls B) called C) is called D) are called 36...
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