Dear Sir or Madam：
Thank you for taking your time to read my letter. As the coming of the International Trade Exposition, Id like very much to be a volunteer.
All our citizens are hosts for this special event. Above all, I promise I should endeavor to serve with enthusiasm our distinguished guests from all over the world. Besides, I have a rich knowledge about Chinese history, so I will be not only a servant but also a carrier for our splendid culture. Whats more, as we all know, English as an international language, will play an important role in communication during the Exposition, and I am good at it. I can express myself fluently and clearly in English.
