The roads in our city are usually very busy.There are lots of cars ,trucks,vans and buses on the road. So we must obey the traffic rules.
At the traffic lights, when you see a red light, you must stop. When you see a green light, you should walk across the street quickly. You mustn't play balls on the roads because it is dangerous. When you drive a car, you mustn't drive too fast. And you shouldn't make a phone call when you’re driving.