One possible version：
 Last Monday，my classmate and I saw a group of people gathering around on our way to school．In order to see what was happening，we got close and found an old woman lying on the ground．The people just stood there，watching and chatting．We were worried about her and decided to take her to the hospital by taxi immediately．It turned out that she slipped and fell．She had to stay in the hospital，so we contacted her family．Soon her son came and thanked us by giving us money．We refused the money and said goodbye to them．Hurrying to school，we found we were late．To our delight，our teacher praised us for what we had done and we felt proud of that． One possible version：
 Last Monday，my classmate and I saw a group of people gathering around on our way to school．In order to see what was happening，we got close and found an old woman lying on the ground．The people just stood there，watching and chatting．We were worried about her and decided to take her to the hospital by taxi immediately．It turned out that she slipped and fell．She had to stay in the hospital，so we contacted her family．Soon her son came and thanked us by giving us money．We refused the money and said goodbye to them．Hurrying to school，we found we were late．To our delight，our teacher praised us for what we had done and we felt proud of that．