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    I can’t find my key. It in my office. A. must be forgotten B. must be left C. must have been forgotten D. must have been left 【查看更多】

     

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    I can’t find my key. It ___________ in my office.

    A. can be forgotten                        B. can be left

    C. must have been forgotten           D. must have been left

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    I can't find my key．It ________ in my office．

    [　　]
    A．

    can be forgotten

    B．

    can be left

    C．

    must have been forgotten

    D．

    must have been left

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