Yours,

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　Li Hua

【答案】Dear Peter,

　　I'm Li Hua. Thanks a lot for your invitation to your cultural exchange program. I really want to accept it and take this opportunity to introduce the traditional Chinese painting to foreign friends, but I'm sorry to tell you that I can't. the reason is that I am occupied preparing performance for the coming National Day.

I strongly recommended my friend Li Ming, who is the most suitable person to take my place next week. He began to learn paining at an early age and has a good knowledge of the traditional Chinese painting, which, along with his active personality and perfect spoken English, will help make your activity a success.

　　Sorry again for any inconvenience caused by my absence.

　　Best wishes.

Yours,

Li Hua

【亮点说明】这篇短文使用了一些高级句型。例如the reason is that I am occupied preparing performance for the coming National Day.这里含有一个表语从句。I strongly recommended my friend Li Ming, who is the most suitable person to take my place next week.这里含有一个定语从句。He began to learn paining at an early age and has a good knowledge of the traditional Chinese painting, which, along with his active personality and perfect spoken English, will help make your activity a success. 这里含有一个定语从句。