假定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，每句中最多有两处。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。
It was the Christmas. I saw a 7 or 8 year old boy wearing a man’s overcoat what covered him from neck to toe. The sleeves of the coat cut short causally to match the boy’s arm long. I went to the nearby shop. As I had a son of a same age, I knew the size. A few moments later, I bought a nice pair of trousers, with a matching overcoat. Wearing Santa’s hat, I went back and give the new clothes to her. The unexpected joy on his face thrilled me. Unplanned charity brings a strangely sense of contentment that money can ever buy.