Question

【题目】

---You were brave enough to raise objection at the meeting.

---Well, now I regret ______ that.

A．to do

B. to be doing

C. to have done

D. having done

Answer 1

【答案】D

【解析】考查非谓语动词辨析。regret doing sth.表示对已经发生的事感到“后悔”；regret to say/tell/inform/announce用以报告令人不快之事，表示对将要说的话感到“遗憾、抱歉”，主语通常是I/we，regret用一般现在时。