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    of the burden of ice, the balloon climbed up and drifted to the South. A. To be free B. Freeing C. To free D. Freed 【查看更多】

     

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    ______ of the burden of ice, the balloon climbed up and drifted to the south．


    1. A.
      To be free
    2. B.
      Freeing
    3. C.
      To free
    4. D.
      Freed

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    ________ of the burden of ice, the balloon climbed up and drifted to the south．

    [　　]

    A．To be free

    B．Freeing

    C．To free

    D．Freed

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