Traffic rules help to keep order on the road. They also help to keep people 1 .The pedestrian(行人) has as many rules to 2 as the driver of a car. You should walk on the sidewalk(人行道) or at the side of the road. Always look 3 before you walk across the street.If you like riding a bike , don’t ride in middle of the road or run 4 red traffic lights. When you ride a bike with a friend ,don’t look around or talk .If you drive a car, you should 5 at the traffic lights. You must always 6 a seat belt (安全带).Without belts 7 the driver and the passengers may be badly hurt in a sudden accident.