shoule ought had better have to must的区别

题目

shoule ought had better have to must的区别
用法以及表达意思

答案

should do sth.
must do sth.
ought to do sth.
前三个都是必须做某事,语气较直接.
had better do sth.最好做某事,委婉一些的说法.
have to do sth.表示不得不做某事,有不情愿的意思在里面.