题目内容：

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。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(Λ)，并在其下面写出该加的词。

删除：把多余的词用(＼)划掉。

修改：在错的词下画一横线，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。

My mother was driving me to school while we saw a cyclist fall over his bike onto the side of the road ahead. Without the second thought we pulled over and got out. He said he was OK but I could see his face bleed, so I returned to our car, taking out a case of first-aid supply like bandages. Cars were going by but we were safely on the side of the road and manage to tend to the injuries. Thankfully his head wasn’t hurt seriously. I was glad that we happened have all those supplies in our car. Though we have never used them before, but we must prepare them in case anything like that happens again.