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。

Mr. Smith had a 8-year-old son named Tony, who enjoyed listen to music very much. So he bought a piano to Tony, hoping that he could become a famous pianist one day. The little boy put her heart into practising the piano day after day and seems to enjoy every minute of it. Therefore, half a year later, he told his father that he was tired practising the piano. Hear this, Mr. Smith said, “Tony, it is one thing to be fond of listening to music, but it is another thing to perform good by yourself. You can never play the piano well even if you don’t practise more.”