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    Do you know at the bus stop? A. whom are they waiting for B.who are they waiting for C. whom they are waiting for D.who they are waiting ( ) 22 –It our duty the environment. A. to protect B. protecting C. protects D. protect 【查看更多】

     

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    Do you know ______ at the bus stop?

    A. whom they are waiting for          B．who they are waiting 

    C． whom are they waiting for        D．who are they waiting

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    Do you know ________ at the bus stop?

    [　　]

    A．whom they are waiting for

    B．who they are waiting

    C．whom are they waiting for

    D．who are they waiting

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