英语必修一问题My mother warned me()on the competer on weekends

问题描述:

英语必修一问题My mother warned me()on the competer on weekends
A.not to turn
B.not turn
C.not turning
D.not to turning
为什么不选B,而选A

A.not to turn
语法点:warn sb to do sth.警告某人做某事.
warn sb not to do sth.警告某人不要做某事.