5、nochoice.我很遗憾必须这样去做,我实在没有办法。 Idon'tregrettellingherwhatIthought. 我不为告诉她我的想法而后悔。典型例题---Youwerebraveenoughtoraiseobjectionsatthemeeting.---Well,nowIregret___that.A.todo B.tobedoing C. tohavedone D. havingdone答案:D。regrethavingdonesth.对已发生的事感到遗憾。regrettodosth.对将