问题:

1.Weneedthesamemachine___inyourfactory.A.whichisbeingusedB.thatusedC.asisbeingusedD.asitisbeingused2.Theteacheraskedmesomequestions___tomypaper.A.relativeB.aboutC.onD.for3.Theengineersaidthatnewly-designedenginewas

更新时间:2024-04-27 23:08:59

问题描述:

黄建成回答:

  Amachine后面要跟修饰它的从句

  A有to在后面,别的都不能用

  Ctwiceaspowerful固定句形.如选4,就该改为twicemorepowerfulthan

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