need to、have to、ought to的区别?

如题所述

need
(vt)to
需要做某事,主语一般是人表示主动,如:you
need
to
think
hard.
have
to
情态动词)不得不,如:I
have
to
leave
now.
ought
to(情态动词)应该,如:we
ought
to
clean
the
room
at
once
温馨提示:答案为网友推荐,仅供参考
相似回答