Dear Sir or Madam：

親愛的女士或者先生：

　　Thank you for taking your time to read my letter. As the coming of the International Trade Exposition, I’d like very much to be a volunteer。

　　謝謝你抽出時間來閱讀我的信。對于即將到來的國際貿易博覽會，我非常想成為一名志愿者。

　　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. What’s 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。

　　我們所有的公民都是這個特殊事件的主人。首先，我保證我會努力與熱情服務我們尊貴的來自世界各地的客人。另外，我擁有豐富的中國歷史知識，所以我將不僅僅是一個仆人，也是一個中國燦爛文化的載體。更重要的是，我們都知道，英語作為一種國際語言，將在通信中發揮重要的作用，在本次展會上，我很擅長。我能用英語流利清晰地表達。

　　To sum up, I believe I can be a qualified volunteer. I will value it and do all I can if I could be accepted to be one.

　　總之，我相信我能成為一個合格的志愿者。我會珍惜它，如果我可以成為其中的一個，我一定會盡我所能。

　　Yours,