短文改错：
假如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，要求你在错误的地方增加、删除或修改某个单词。
增加：在缺词处加一个漏字符号（∧），并在其下面写上该加的词。
删除：把多余的词用斜线（﹨）划掉。
修改：在错的词下划一横线，并在该词下面写上修改后的词。
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 listening to music very much. So he bought a piano to Tony, hoping that he can become a famous pianist one day. The little boy put her heart into practising the piano day after day and seemed enjoy every minute of it. However, half a year later, he told his father that he was tiring of practising the piano. Heard this, Mr. Smith said, “Tony, it is one thing to be fond of listen to music, and it is another thing to perform skillful by yourself. You can never play the piano well even if you don’t practise more.”