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    Every year of trees are planted on the hills to protect the environment. A. a thousand B. thousands C. thousand 【查看更多】

     

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    Every year ______ of trees are planted on the hills to protect the environment.


    1. A.
      a thousand
    2. B.
      thousands
    3. C.
      thousand
    4. D.
      the thousand

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    Every year _______ of trees are planted on the hills to protect      the environment.
    [     ]
    A. a thousand      
    B. thousands          
    C. thousand

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    Every year ________ of trees are planted on the hills to protect the environment.

    [　　]

    A．a thousand　　B．thousands　　C．thousand

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    Every year ______ of trees are planted on the hills to protect the environment.

    [　　]

    A．a thousand

    B．thousands

    C．thousand

    D．the thousand

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