-----You were brave enough to raise objections at the meeting.　　-----Well, now I regret th

-----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

A. to doB. to be doingC. to have done(答案→)D. having done解析： regret doing sth.后悔作了什么。

我也是这个答案

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