How to Cross the Road用祈使句列出横过马路的规则（写一小段,用英语）
问题描述：
How to Cross the Road用祈使句列出横过马路的规则（写一小段,用英语）
答
when the traffice light is green,you can cross the road.when it turns yellow,you should wait,and when it turns red,you can not cross the road.