Dear Mrs. Miller：
Im writing to introduce to you Mr. Wang，one of my high school classmates in Beijing. He is presently working for Lenovo Technologies and is going to be transferred to its branch in your city next month.
Since this will be the first time for him to work in a foreign country，he will possibly be faced with many problems，and especially the housing problem. He hopes to obtain your guidance and help in finding a good apartment to live. Youve been living there for more than 10 years，so you are surely familiar with things there. If you can kindly help find rental quarters for her，Ill be very grateful.
Thanks for your due attention to this letter and hope to receive your reply soon. Many thanks to the trouble you will have to take for Mr. Johnson.
Yours sincerely，
Zhang Hua
Dear Judy：
I’m writing the letter for the purpose of introducing to your Li Ming, one of my best colleagues.
Presently he is studying in Si Chuang University. He will graduate in July and go to America for further study. As it will be the first time for him to study aboard, he will most likely encounter a variety of difficulties. Therefore, he hoped to enjoy your guidance in some ways. I would be most grateful if you could kindly offer help.
Thanks a lot for paying due attention to the letter. I’m looking forward to your reply.
Yours truly,
Li Ming
扩展阅读：关于开具介绍信的注意事项
（1）确保真实性。介绍信出具单位或个人必须秉承认真负责的态度，介绍信的内容必须清楚明确、客观真实，简洁明了，不能夸大渲染、故弄玄虚，更不可弄虚作假。
（2）明确有效期限。介绍信需注明有效期，有效期的考量一定要慎重，要根据出具介绍信的是由，注意宽限适宜。
（3）加盖公章有效。介绍信需加盖出具单位的正式行政公章方能有效力，不能随意盖章，且要注意，在正确位置加盖公章。
（4）确保介绍信整洁。介绍信也是公文的一种，需认真对待。首先，介绍信内容不得有涂改、污损，如有涂改或污损，需由出具单位重新出具。其次，介绍信的公章必须清晰可辨认，以确保介绍信的真实可信。
（5）固定格式的介绍信应该认真填写存根部分，以备查考。正文与存根中间应该加盖公章，以避免造假行为。
（6）固定格式的介绍信应注意存根、介绍信、回执联三个部分的文件编号统一。