—You were brave enough to raise objections at the meeting.
— Well, now I regret ________ that.
D
regret后所跟动词有todo与doing两种形式，不定式表示“为做某事而遗憾”，doing表示“为做过某事而后悔”。“havingdone”则更强调动作已发生而无法挽回。
People appreciate _______ with him because he is knowledgeable and humorous.
The French maintain a ________ separation of personal and professional life.
Toaworker,________fromthepointofviewofsocietyisnecessarylaborisfromhisownpointofviewvoluntaryplay.
On average about ￡5000 a year is spent on each private school pupil,_______ the amount spent on state school pupils.