ought to do和have to do以及should do有什么区别?

ought to do和have to do以及should do有什么区别? have to do .should do .ought to do .must.的区别 should she do和what to do,有什么区别? ought to 和should有什么区别? ought to和should有什么区别? should 和 ought to 有什么区别? 英语中ought to,be supposed to do和should 的区别 would prefer sb to do sth和should prefer sb to do sth有什么区别 have to do 和 have do 和 have doing有什么区别? have sth done和have sth to do和have sth do有什么区别? 英语,have better do 和 had better do有什么区别?have to do 和 had to d be likely to do sth ,have an ability to do sth和may有什么区别