致歉信2
语言注意点:
致歉信必须写得坦诚，表达出真心的歉意。

Directions
Suppose you have accepted Mr. Zhang?s invitation to dinner, but you have to change your plan for some reason. Write a letter in about 100 words to make an apology to him. Do not sign your own name at the end of your letter, using Li Ming instead.

Sample:
Dear Mr. Zhang,
It was very kind of you to invite me to dinner in your house the day after tomorrow and I originally accepted it with great pleasure. But now, much to my regret that I may not be able to keep my promise because my sister was injured in a car accident and I must look after her in the hospital for several days.
The accident happened suddenly and all my family are now busy dealing with it and caring for my sister. So I don’t think I will have the time to go to the dinner and even if I go, I am afraid I will hardly be in a cheerful mood, which may spoil the party.
I am very sorry for that and really regret that I would miss such an excellent chance of enjoying the perfect dishes with friends. Besides, please give my regards to Mr. and Mrs. Rogers when they come to dinner.
Sincerely yours.