He said,“time is running short.You had bett

题目

He said,“time is running short.You had bett
He said,“time is running short.You had better leave now”中为什么要用had而不用have呢,
那跟引号没关系吗，它引号内的内容是在那个特定地点说的，

答案

不好意思,昨天说错了,You 'd better也就是you had better 是固定词组,You’d better do sth