我和徐嘉来到东北角的路口。每当红灯亮起时,我俩就会举起交通指示牌,告诉人们不要闯红灯,要等到绿灯亮了才能通行。人们看到我们都很惊奇,看到红灯都很自觉地把车子停下来。一位阿姨对我赞不绝口,还说学校组织的这种社会实践活动很好。一位老爷爷问我是几年级的,在哪个学校……时间 Xu Jia and I came to the junction of the northeast corner. Whenever the red light is on, we will lift the traffic signs to tell people not to run red lights and wait for the green lights to pass. People are surprised to see that we are very conscious to see the red light the car stopped. An aunt spoke highly of me and said that such social practice organized by the school is very good. An old man asked me a few years, in which school ... ... time