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  Imailedthelettertwoweeksago.She_____it.A.mustreceiveB.can'treceiveC.mightreceiveD.musthavereceivedNowadayscomputers_________________widelyinourdailylife.A.useB.usedC.willuseD.areused

  Imailedthelettertwoweeksago.She_____it.

  A.mustreceive

  B.can'treceive

  C.mightreceive

  D.musthavereceived

  Nowadayscomputers_________________widelyinourdailylife.

  A.use

  B.used

  C.willuse

  D.areused

1回答
2020-12-18 19:41
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刘东雪

  D must have done 对过去某事的推测,一定是.了,本句意思是她一定是收到了.

  D 被动语态,结构是主语+be动词+过去分词,其它三项结构都是错误的,只有D是正确的.

2020-12-18 19:44:27

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