Dear Sir or Madam,

I am Li Hua, chairman of the Student Union. Our school will hold a Dragon Boat Race which will be held in Guangzhou. Therefore, we want to invite the students of Cambridge High School. You can visit this race during May 25th to 30th.

Dragon Boat Race is a Chinese tradition. People must learn to cooperate so that their boats can be faster than other boats. It shows us the importance of team work. And we can see the race and cheer for the players. I think it must be a chance for you to know more Chinese culture. We can learn from each other and promote cultural exchange.

We hope that you can come to this race. We are looking forward to your reply before April 15, 20xx.

Yours

Li Hua