听一段材料，回答下面几个小题。What is the speed limit on highways in America?
A. 25 miles an hour.
B. 35 miles an hour.
C. 55 miles an hour.What is on a traffic ticket?
A. Traffic rules.
B. Why the driver is stopped by the police.
C. How much the driver must pay.What will happen if a driver receives too many traffic tickets?
A. He will be put in prison.
B. He can't drive forever.
C. He can't drive for some time.How is the traffic during the rush hour?
A. Quite heavy.
B. Very light.
C. No traffic.
