Question

【题目】—Robert is indeed a wise man.

—Oh,yes.How often I have regretted_____his advice!

A.to takeB.taking

C.not to takeD.not taking

Answer 1

【答案】D

【解析】regret后接动词+ing形式作宾语，表示后悔做某事。根据所提供的情景Robert is indeed a wise man.可判断出，表示“好多次我都后悔没听他的劝告”。所以要用动词+ing形式的否定式。regret后接不定式作宾语表示“为……抱歉，遗憾”。