范文1：
Dear John,
I am eagerly looking forward to your visit to our city. After all these years of writing to each other, I can not wait to see you. However, I regret to inform you that I will not be able to meet you at the airport on time.
The reason is that your flight will arrive early in the morning, and the earliest I can reach the airport will be about an hour after you land. Will you please wait for me in the arrival lounge? You can have breakfast while you wait.
By the way, as we have never met I must tell you home to identify me: I am of 165cm tall and have a long hair. In addition, I will wear a white skirt and carry a China Daily at hand.
Hope we can meet soon.
Sincerely yours,
范文2：
Dear Friends,
Please accept my sincere apology for the inconvenience that I caused you by adding the extra visiting without your permission.
I had no intention of intruding on your personal life. In China, arranging interesting leisure activities for visitors is a common way to show welcome. However, as your receptionist, I should have realized that you are inclined to regard your private time as an inviolable treasure and hate to be harassed by unplanned matters.
I’m really sorry that I didn’t check with you before making such incomsiderate arrangement .All I can say is that it won’t happen again.
Sincerely,
范文3：
Dear Anne,
Thank you for your invitation to dinner at your home tomorrow evening. Unfortunately, it is much to my regret that I cannot join you and your family, because I will be fully occupied then for an important exam coming the day after tomorrow. I feel terribly sorry for missing the chance of such a happy get-together, and I hope that all of you enjoy a good time. Is it possible for you and me to have a private meeting afterward? If so, please don't hesitate to drop me a line about your preferable date. I do long for a pleasant chat with you.
Please allow me to say sorry again.
Regards,