急,You'dbetter not.,had you?

问题描述:

急,You'dbetter not.,had you?
You'dbetter not.,had you?的句式是否正确,为什么?感谢赐教.
You'd better ( )go to school,( )you
Anot to go,will Bnot go,had
答案选B为什么呢,请分析一下,感谢赐教!

had better后加动词原形 故A排除 反义疑问句将助动词提前 所以选B