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    - I can’t keep myself active during the day. - You take more exercise. A. must not B. must be C. need to D. needs 【查看更多】

     

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    —I can’t keep myself active during the day.
    —You _______ take more exercise.
    [     ]
    A. must not
    B. must be
    C. need to
    D. may be

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