题目内容：

假如英语课上老师要求同学们交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，要求你在错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号（），并在其下面写上该加的词。

删除：把多余的词用斜线（＼）划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

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。

Today I was having a PE lesson while I fell down and hurted my foot．I was in great pain at that moment but I tried to act as if nothing happened until the class was over． Though I had difficulty walk back to my classroom, but I still didn't tell anyone and even refused the offer of help from my classmates． As the result, the hurt on my foot became worse．Now I know I am wrong．we can tell other our need for help and accept their help．someday we can help him in return．In this way, we can get along with each other happily and peacefully．