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        1. –Look! Someone is cutting a tree on the moon.
          –It _______ be true, Granny. Our teacher says there is no air there.
          A.can'tB.mustn'tC.mayD.should
          A

          試題分析:句意:看,有人在月亮上砍樹。那不可能是真的,奶奶。我們老師說月亮上沒有空氣。Can’t 表示推測時,用于否定句,“不可能”;mustn’t 禁止,不要;may 可能;should 應該。根據(jù)句意,選A。
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