Dear XXX,I'm writing you for the invitation of coming to China to watch the Olympic G As you know, the 2008 Summer Olympic Games are scheduled to be held in Beijing, China, and that would be great if you can come so we can watch I have several tickets for the free style 800-m swimming compitition, so we can go and watch Of course, you can stay at my I look forward to hearing from XXX dear whoever,thank you so much for inviting me to your dancing party, i would love to join you but i don't think I I was just informed that i have some other (具体的事)i'm terribly sorry, and i hope you can forgive my and I hope you will truly enjoy the with love/regardsXXX