B: Sure. Remember this rule. In Great Britain, traffic keeps to the left. Cars, buses and bikes must all keep to the left side of the road.

A: That sounds strange. In China traffic keeps to the right.

B: If the traffic lights are green, the traffic can go. People on foot mustn't cross. In the morning and in the evening, when people go to or come from work, the streets are very busy. Traffic is most dangerous then.

A: The people must be careful.

B: Yes. Before crossing the road, people must stop and look both ways. Look right and left. Then, if you are sure that the road is clear, it is safe to cross the road. We must teach young children to cross the road safely.

1. If we make the roads safer,________.(　)

A. don't cross the roads too often

B. traffic should keep to the right

C. everybody must be careful and obey the traffic rules

D. roads must be clear

2. When you go by bus in England, you must ride________.(　)

A. on the right side of the road　　　　　　　　　　    B. on the left side of the road

C. on both sides of the road　　　　　　　　　　    D. in the middle of the road

3. If the traffic lights are green,________.(　)

A. the traffic mustn't go　　　　　　　　　　    B. people on foot must not cross

C. the traffic is most dangerous　　　　　　　　　　    D. people on foot can cross

4. "The road is clear. " means that________.(　)

A. the road is very clean　　　　　　　　　　    B. the road is not noisy

C. there is no car or bus running　　　　　　　　　　    D. you can see very clearly on the road

5. In order to keep safe,________.(　)

A. we must teach young children to cross the road safely

B. we must always give young children a good example

C. small children must not play in the street

D. all of above