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    21．Australia to have been connected to South America millions of years ago. A．is believed B．believes C．believed D． is believing 【查看更多】

     

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    Australia ________ to have been connected to South America millions of years ago．

    [　　]

    A．is believed

    B．believes

    C．believed

    D．is believing

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    Australia ________ to have been connected to South America millions of years ago．


    1. A.
      is believed
    2. B.
      believes
    3. C.
      believed
    4. D.
      is believing

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