假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除:把多余的词用斜线(＼)划掉。
修改:在错的词下划一横线，并在该词下面写出修改后的词。
注意:
1. 每处错误及其修改均仅限一词；
2. 只允许修改10处，多者(从第11处起)不计分。
While driving several days before, I saw a cyclist fall off his bike. I stopped my car immediately. Seen his face was bleeding, I took out my first aid pack and treated by his injuries with cold packs and bandages. Fortunate he hadn’t hurt his head. Then I offered him ride to the nearest clinic, so he refused. He said he could go to the doctor myself. I was glad that I had those supply in my car, where I had never used before. I’ll continue to keep the first aid pack in my car in case something like this happened again.