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    精英家教网 > 高中英语 > 题目详情

    _____rapidly by the body, sugar provides a quick energy source


    1. A.
      Digested
    2. B.
      Digesting
    3. C.
      To digest
    4. D.
      Having digested
    A
    考查非谓语动词。主语sugar与digest之间是被动关系，所以用过去分词选A。
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