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    I think they failed to accomplish the task, ? don't I didn't they 【查看更多】

     

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    I think they failed to accomplish the task, ______?

        A．do I        B．don't I    C．did they      D．didn't they

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    I think they failed to accomplish the task, ______?

    A．do I        B．don't I    C．did they      D．didn't they

    查看答案和解析>>


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