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    -----Why? I didn’t get you on the phone. -----We football on the playground when you phoned. A. must be playing B. must play C. must have played D. must have been playing 【查看更多】

     

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    -----Why? I didn’t get you on the phone.

      -----We ________ football on the playground when you phoned.

    A. must be playing              B. must play  

    C. must have played             D. must have been playing

    查看答案和解析>>

     -----Why? I didn’t get you on the phone.

      -----We ________ football on the playground when you phoned.

    A. must be playing              B. must play  

    C. must have played             D. must have been playing

     

    查看答案和解析>>

    —Why，I didn’t get you on the phone.

    —We ________football on the playground when you phoned.

    A．must be playing

    B．must play

    C．must have played

    D．must have been playing

     

    查看答案和解析>>

    －Why?I didn't get you on the phone．

    －We ________ football on the playground when you phoned．

    [　　]
    A．

    must be playing

    B．

    must play

    C．

    must have played

    D．

    must have been playing

    查看答案和解析>>


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