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    29． you turn off all the lights when you are away from the classroom . A．Making sure B．To make sure C．Being sure D．Make sure 【查看更多】

     

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           you turn off all the lights when you are away from the classroom.

           A．Making sure        B．To make sure      C．Being sure          D．Make sure

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    _______ you turn off all the lights when you are away from the classroom .

    A．Making sure            B．To make sure          C．Being sure        D．Make sure

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