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（∧)，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。

Last Saturday, some of my friends and I went to a park for a walk. I saw a elderly woman collecting rubbish throw by people. She obviously had some difficulty collect some small things. Suddenly, I came up with an idea. Why not asked my friends to help her collect rubbish? Much to their surprise, all my friends agreed and were willing help. So we worked hard together with her and collected much rubbish. At the end of this activity, and we said goodbye to her. Felt tired, I was really happily. I really think we'll have a beautiful society if all people help each other. How a meaningful day!