发布时间：2019-08-09 17:23:27
you must know the traffic（）rulers if you walk（）a city.there()always()lights for the traffic lights.you can cross the street at a () light and you must () at a red light.the () light means "wait".if you drive () car,you must drive () the right side of the ().谢谢 帮帮忙
You must know the traffic rules if you walk in a city.There are always three
lights for the traffic lights.You can cross the street at a green light and you must stop at a red light.The orange light means "wait".If you drive a car,you must drive on the right side of the road.