◎ 题干
— You were brave enough 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
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“--You were brave enough to raise objections at the meeting.--Well, now I regret_______ that. [ ]A. to do B. to be doingC. to have done D. having done…”主要考查了你对  【动名词的完成式】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。