问题
选择题
The teachers often tell their pupils ____ across the road when the traffic light is red.
A．not go
B．not to go
C．don’t go
D．didn’t go
答案
答案：B
题目分析：句意：老师们经常告诉他们的学生当交通灯是红色的时候不要横穿马路。tell sb to do sth“告诉某人做某事”，否定形式是tell sb not to do sth。结合句意，故选B。