先要称呼对方，然后自我介绍。

表明你对学校感兴趣，然后问问题。最后感谢，署名。具体格式如下： Dear Officer: 自我介绍。My name is xxx and I am a grade 12( ) high school student from China. I have searched the college website, and I am very interested in applying to your school. However, I still have some questions about the school. Question 1 Question 2 ... Thank you for your help in advance! I am looking forward to your reply! Sincerely yours, xxx