急求，英语作文。

Dear Mr/Mrs,
I am Li Hua. As we know the International trade exposition will be held in the near future, and I think it's a great chance for me to do something, so I apply for being a volunteer to help others and show my city to the world. I am a very warm and patient and I love to make friends. I am always ready to stretch my hand to help people who are in need for help. I have been this city for many years and I am familiar with the culture of this city. To be a volunteer is also to be a good servant, what's more, a culture emissary. And I gain the ability to express English fluently, so I can communicate with foreigners well. Last but not least, I 'd appreciate it very much if you give me this chance.
Yours,
Li Hua