范文一

　　Dear Charlie,

　　Kindly excuse me for my not being able to see you off at the airport this Saturday as I have promised. A major business partner of our company will be attending an important conference in Xiamen this weekend, and my boss finally chooses me to accompany him there to negotiate about a new transaction. I have just been informed of this plan and am happy about the decision-this is an opportunity to both display and enhance my abilities, so I am afraid I cannot be present at the airport. Pursuing study overseas is an essential step in the accomplishment of your dream.

　　Sincerely yours,

　　范文二

　　Dear Kate:

　　Excuse me for my long delaying in returning to you your Robinson Crusoe which I read through with great interest. I had finished reading the book and was about to return it when my cousin came to see me. Never having seen the book, She was so interested in it that I had to retain it longer. However, I hope that in view of the additional delight thus afforded by your book, you will overlook my negligence in not returning it sooner. Thanking you again for the loan.

　　Sincerely yours,

　　范文三

　　Dear David:

　　I am afraid that you will think me unpardonably negligent in not having answered your letter dated 7, December sooner, but when I have told you the reason, I trust you will be convinced that the neglect was excusable. When your letter arrived, I was just in Hong Kong.

　　As my family could not forward it to me during my absence, it has been, therefore, lying on my desk until the moment when I took it up. Now the first thing I have to hasten to do is to write to you these few lines to express my deep regret.

　　I enjoyed many pleasant sights during my trip. I shall be pleased to give you an account to of them when I see you next.

　　Sincerely yours,