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。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（Λ），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。

I witnessed a street accident today, that happened as I was waiting for the green light. Without hesitate, a woman nearby tried to help victims. However, a nurse came and said, “Excuse me, but I am a nurse and I can do it well than you. After all, I had taken a course in first aid. Stepping back, or I cannot work.” The women stepped aside and watched the procedure. Then she said, “If you need a doctor, and I’m just behind you.” The nurse turned and looked at the woman on surprise. Obviously, the nurse went red. Without saying any more, the doctor started to help. In my opinion, they were all responsible and great.