Which one is not right? ________
A.Drive fast by sled.
B.Wear a life jacket on a ferry.
C.Stop at a redlight.
Don’t ________on the road.
A.runB.to run C.running
I can go at a________light.
A. redB. yellowC.green
If you go on the road,you must know the________.
A.traffic rulesB. traffic C.lights
In U.S. you must wear a________when you ride a bike.
A.helmetB.hatC.scarf