5.People
are often killed while _________(穿越)
the road. Most of them are old people and ________(孩子). Old people are often killed because they
are careless. People should look and ________(听)
before they cross the road. A car, a truck or a bus can’t stop very ________(快)if it is going very fast. It will travel
many meters before it _________(停下).
Pedestrian don’t know this. They think that a car can stop right away. It is
hard for a pedestrian to _________(知道)
how fast a car is traveling. The only ________(安全的)
way to cross the road is to look at _______(两面)
ways, right and left. The ________(正确的)way
to cross the road is to walk quickly when the traffic ____(信号灯) turn green.