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、刪除或修改。

增加:在缺同处加一个漏同符号（∧)，并在其下面写出该加的同。

删除:把多余的同用斜线（\)划掉。

修改：在错的同下面划一横线，并在该同下面写出修改后的同。

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 family like doing voluntary work. My parents and 1 are used to going to the community center to help the people lived there. Last Saturday, my family did somethings for others. My father, who is a computer engineer, check and fixed computers for neighbors but my mother made taste dumplings for the elderly people. 1 have been taught some primary school students to play with chess for years. Next weekend if we are available, we clean the house for the old people. I think that my family do is meaningful. It is known that helping others is helping ourselves. It can also bring happiness to them.