Dear xxx, I'm a high school student.My name is Li Hua.I want to be a volunteer of the EXPO 2010.Let me introduce myself to you now.I'm a eighteen-year-old boy.And I'm pretty healthy.I'm good at English,and I can talk to foreigners in English.I believe that I can help more foreigners.One of the important reason that I want to be a volunteer is I'm willing to help others and dedicate.And I'm willing to take part in some necessary training. In the end,I hope you can admit me to be a volunteer. Yours, Li Hua. 自己写的写的不好- -