练习册

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    Some of the swamps have become . 【查看更多】

     

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    ________ of the swamps have become ________.

    [　　]

    A. Any, pollute

    B. Some, pollution

    C. Some, polluted

    D. Any, polluted

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    ________ of the swamps have become ________.

    [　　]

    A. Any, pollute

    B. Some, pollution

    C. Some, polluted

    D. Any, polluted

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    选词填空。
    use,  pollute,  provide,  educate,  care,  save,  endanger
    1. We're trying to _____ the manatees.
    2. There _____ to be a lot of manatees.
    3. Some of the swamps have become _____.
    4. I feel that zoos _____ clean and safe places for _____ animals to live and help to _____ the public
        about _____ for them.

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