[A] looking and listening [B] to look and listen [C] watching and hearing
A moving car, truck or bus cannot (46) quickly. If a car is going very fast, it will travel (47) before it stops. People don’t always understand this. (48) a car is traveling, the longer it (49) to stop. It is very hard for a person to know how fast a car is traveling.
The only safe way to cross the road is to look (50) . The right way to cross the road is to walk quickly. It’s not safe to run.