阅读短文，判断正(T)误(F)。 People are often killed while crossing the road. Most of these people are elderly people and children. Elderly people are often killed because they usually cannot see or hear very well. Children are often killed because they are not careful. They have to look and listen before they cross the road. If a car or a bus is going very fast, it cannot stop very quickly. People don't always understand this. They think a car can stop within a few metres. The faster a car is running, the longer it takes to stop. It is very difficult for a person to know how fast a car is running. The only safe way to cross the road is to look both ways, right and left. Then, if you make sure there aren't any cars coming up the road, it is safe to cross. The right way to cross the road is to walk quickly. It is not safe to run. If people run across the road, they may fall down. (     )1. Children are often killed when crossing the road because they don't look and listen carefully before they cross it. (     )2. When you cross the road, you'd better try to stop the car. (     )3. It is possible for a driver to stop his car at once when he finds something wrong within some meters in front of him. (     )4. Never cross the road when you see cars driving nearby. (     )5. The writer asked people to be careful with traffic.