ought to,had better,have to的否定形式,给几个例句；had better后必须加动原吗?一定要给例句.

ought to ,should,had better 有什麽区别? should,ought to ,had better的区别 ought to should had better must have to 的区别 had better/should/ought to的具体用法 should,could,had better,ought to 的区别, had better,should,ought to的用法.should,和ought to 的用法是相近的吧?ought to呢, ought to,had better,have to的否定形式,给几个例句；had better后必须加动原吗?一定要给例句. shoule ought had better have to must的区别用法以及表达意思 should,ought to,had,better肯定否定各造一句（汉语也写） I really ought to have konwn better. 关于should had better ought to 的区分,错误的修改，正确的写C1.My mom ought know that I miss her.2.The teacher had better test the students soon.3.Ought they work so late on a school night?4.Desiree shouldn't wait to write her paper.5.Th 谁能给我10条关于环境保护的建议?要英语的,用should/ought to/had better写.要准确详细, Since it is already midnight,we___a.had better leavingb.ought to have leftc.should take our leaved.might as well leave ought to 是had better to do还是had better do had better do还是had better to do had better +do sth 还是had better +to do sth since you need to catch an early train tomorrow,we____leave now.A.might as well B.had better to C.ought to have D .should have to答案及解析