have to ,need ,must 的用法

题目

have to ,need ,must 的用法
It is so early .We don't （have to） go back now.
It is so early .We don't（ need ）go back now.
It is so early .We don't（ must ）go back now.
应该用哪一个、

答案

首先搞懂意思.
have to：不得不
need：需要
must：必须
这样带到句子中并翻译成英文,很显然是need.
整体翻译：现在很早,我们不（需要）现在回去.
还有不懂得地方吗?