( )Our classroom is _____________ the second floor. A. in B. on C. near
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