Mr.Smith warned his son_______after drinking.

问题描述:

Mr.Smith warned his son_______after drinking.
A.never to drive
B.to never drive
C.never driving
D.never drive
选择原因?

选A,
warn sb to do sth,固定搭配
否定形式是:warn sb not to do sth
本句中的never就是not的作用