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    - You were brave enough to raise objections at the meeting. - Well, now I regret so. A. to do B. to be doing C. to have done D. having done 【查看更多】

     

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    —You were so brave enough as to raise objections at the meeting.

    —Well, now I regret ________ that.

    [　　]

    A．to do
    B．to be doing
    C．to have done
    D．having done

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