Mr. Benet is such a wise teacher. Never have I regretted the advice he gave me.
A. to take
B. not taking
C. not to take
D. taking
网友回答
A. to take
B. not taking
C. not to take
(答案→)D. taking
解析：考查regret的用法。regret doing sth表示后悔做过某事；regret to do sth.表示遗憾地做某事。