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    Many trees must be planted every year. A. thousand B. thousand of C. thousands of D. thousand 【查看更多】

     

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    Many _____ trees must be planted every year.

    [     ]

    A. thousand
    B. thousand of
    C. thousands of
    D. thousand

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    Many ________ trees must be planted every year.

    A. thousand  B. thousand of  C. thousands of  D. thousand

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