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    11．- How long the meeting now? -For half an hour. A．has; been on B．has; begun C．Did; begin D．does; begin 【查看更多】

     

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    —How long  __________ the meeting _________now?

    —For half an hour.

    A．has; been on        B．has; begun        C．Did; begin        D．does; begin

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