They ought to have finished their composition last Sunday ,____ they?答案是didn't.但有书上又有填oughtn't的 这是怎回事?请回答得越详细越好.

should/ ought to have should ought to have done they ought to have told you how much money you needed的被动语态 Everything____into consideration,they ought to have another chance.A.to take B.taken C.to be taken D.taking The teacher told the students that they--keep silent in class all the time.A.ought to not B.ought not to C.ought not to have D.can't选哪个,怎么翻译, Everything____into consideration,they ought to have another chance.A.took B.take C.taken D.to take这题选什么啊? ought to have done的意思 I really ought to have konwn better. 关于ought to---You ought to have called him yesterday.---Yes,I know I__________________A ought to B ought to haveC ought to have done D ought to have done I didn't tell Jim the good news.Oh,you(ought to have),为什么是ought to have,是非谓语动词里的a.ought b.ought to C.ought to having D.ought to have they stared only five minutes ago.they ________that far请问 A might not goB shouldn't goC couldn't have goneD ought not to have gone they have the f--- to do what they think best. 高一英语 情态动词判断正误1 They ought to help that old lady,oughtn't to they?2 You don't have to come if you don't want to.3 But for the heavy rain,they ought to arrive early.4 We have not to hand in the paper right now.5 He doesn't have should have done 可以换成 ought to have done嘛? ought to Everything ______ into consideration,they ought to have another chance.A.to take B.taken C.to be taken D.taking 25.------You ought to have come here ten minutes ago? --------Yes,I _________.A.ought to B.ought to have C.ought D.have ought to为什么选B,不选A? l have already bought twenty bottle of beer ,they ought to be enough for us two.为什么要用ought to be 而不用may be 希望可以有具体的解释