—Robert is indeed a wise man.
—Oh, yes. How I have regretted his advice?
A. to take
B. taking
C. not to take
D. not taking
网友回答
A. to take
B. taking
C. not to take
(答案→)D. not taking
解析:现在分词多表示反复发生的发生过的动作,不定式表示未发生的,将要发生的动作,根据题意可知下文应为否定形式,故选D,我多么遗憾没有听从他的建议啊!