翻译一下

I have read your ad in the newspaper yesterday, I’d like to be a volunteer for the 2008 Olympics. My name is Wang Gang. I am a outgoing person. I think i will become a volunteer must hose(这地方我看不懂你的意思). I like to play ping-pong. I have studied English for five years .now I have a good health and study in first Mudice School. And I always got the champianship for English speech competition and ping-pong game. You can call 0830-9090900 for me. Think you. 　
我改了一下。