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典例体验 As there was so much noise,we what they were talking about. 由于有那么多的噪音,我们不可能听见他们在谈论 什么。 I enough attention to grammar, otherwise I these grammatical mistakes in my composition. 我本应该足够注意语法的,不然,我就不会在我的作 文里犯这些语法错误。(实际上没足够注意语法) She this song. 她可能还没有听过这首歌。 couldn’t have heard should have paid shouldn’t have made might not have heard Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 归纳总结 could have done意为: 。 could not/never have done不可能做过某事 must have done一定做过某事 might have done也许做了某事 should have done本该做实际上没做 needn’t have done本来不需要做实际上做了 would have done本来会…… shouldn’t have done本不应该做实际上做了 ought to have done本应该做实际上没做 oughtn’t to have done本不应该做实际上做了 本来能够,本来可以做某事 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 即学即用 (1)—Did you visit the Big Ben in London? —No,we it,but we spent too much time shopping. A.could visit B.could have visited C.must have visited D.can have visited B Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. (2)—She looks very happy.She have passed the exam. —I guess so.It’s not difficult after all. A.should B.could C.must D.might 解析 must have passed the exam肯定是通过考 试了,由前句中的“happy”和下句中的“not difficult after all”可以推知。 C Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 9.He/She only cares about whether the eyewitness has given true information, which must be facts rather than opinions. 他/她只关心目击者是否提供了真实信息,它 必须是事实而非个人观点。 典例体验 I would have cold drink coffee. 我想喝冷饮而不是咖啡。(平行名词) Why didn’t you ask for help, trying to do it on your own? 你干吗非得自己干,而不请人帮忙? rather than rather than Evaluation only.
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