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    Whenever you are away, you must the door A. be sure; is locking B. make sure; is locked C. be sure; will be locked D. make sure; will be locking 【查看更多】

     

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    Whenever you are away, you must________ the door________ .

    A. be sure; is locking  　　　　　　　　　　   B. make sure; is locked

    C. be sure; will be locked    　　　　　　 D. make sure; will be locking

     

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    Whenever you are away, you must________ the door________ .

    A. be sure; is locking  　　　　　　　　　　   B. make sure; is locked

    C. be sure; will be locked    　　　　　　 D. make sure; will be locking

     

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    Whenever you are away, you must ________ the door________.

    [　　]

    A．be sure; is locking
    B．make sure; is locked
    C．be sure; will be locked
    D．make sure; will be locking

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