问题补充:
You should not have said that to her. It hurt her.
--- I know. I regret .
A. to have done that
B. to do that
C. having done that
D. I have done that
答案:
A. to have done that
B. to do that
(答案→)C. having done that
D. I have done that
解析:本题考查动词搭配。regret to do遗憾要做某事;regret doing = regret having done对做过的事情后悔。句意:——你本不应当对她说那些话,它伤害了她。——我知道,我很后悔那么做。