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：在错的词下面划一横线，并在该词下面写出修改后的词。
注意：1）每处错误及其修改仅限一词；
2）只允许修改10处，多者从第11处起不计分。
This winter holiday my classmates and I go to the Sunshine Welfare House for voluntary work. After we went there, we talked about how we could do for the kids over the phone. The next day, we arrived at there with gifts we had prepared, and we received a warmly welcome. Then we began to play with them. I drew picture with the older kids, and my classmates told stories to the young ones. We spent the whole afternoon with them, talked and laughing. It was getting late. We waved goodbye to him and felt delighted to able to accompany those children.
