为什么下句不是You would better be more careful with you work,的缩写?

问题描述:

为什么下句不是You would better be more careful with you work,的缩写?
2.You’d better be more careful with your work,______________?
A.would you B.wouldn’t you
C.had you D.hadn’t you
假如此句是You would better be more careful with you work,那么缩写应为怎样?

you'd better do sth是you had better的简称
所以应该选D