Dear Jim,
I'm so excited that you are going to Beijing next month. It's the capital city in China, I would like to take you to visit those places of interest as you mentioned.
We will go to Tian'anmen Square and see our national flag on the first day. The Great Wall is well-known around the world, especially Badaling Great Wall- the most outstanding representatives of the Great Wall, so I'm planning to take you visit there on the following day. I love all buildings in Beijing, especially the Bird's Nest- the Olympic stadium. So we are going to the Bird's Nest on the last day. What do you think?
I hope you will enjoy your three-day holiday in Beijing. I'm looking forward to your coming. See you soon!
Sincerely,
Mike
另外 原文是鳥巢Bird's Nest吧?我沒見過Bira's Nest...我回你的作文里直接打了Bird's Nest~樓主再查一下~祝好運