Dear Andy,
　　I have read-the advertisement and I am very glad to become your pen-friend.
　　I am a girl of 25 years old. I live with my parents in Beijing. I have a brother working in a computer company. I' m a history teacher in a junior middle school. I share the same hobbies with you, and I also like traveling and hiking very much. I usually go camping with my friends on weekends. I like to make friends, not only in Beijing, but also in other countries. It's a great pleasure to know you. And I am looking forward to hearing from you.
　　Yours sincerely, Li Ping