道歉信是要向对方陈述无法答应的`所请所托的原因，对不愿为的事，可声明自己的一贯主张，对不能为的请托，更应陈述理由，说明自己为什么不能为。作文应该怎么写，看看下面的范文吧。

【篇一】

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,

tom

【篇二】

Dear,

I am terrible sorry for not having attended your class on time. Because I had got a headache for several days and it is my first time to live in Chongqing and I can not suit for the weather here quickly.

To be honestly, I like learning English very well and I have made my mind to learn it well both on spoken English and on written English. I think you will be my best teacher to help me improving my English Level. So I apologize again for my not attend your class. I will make my great effort on English in the future and will not make you disappointment next time!

Excuse me for my unintentional fault!

Sincerely yours,

xin

【篇三】

Dear Frank:

I am terribly sorry to tell you that I have lost the valuable book you were so kind to lend me last week. I read it everyday and intended to finish it next month. Last night when I came to my room, it was nowhere to be found. I will try to recover it as soon as possible. If I fail to find it, I will get a new book for you.

But I am afraid it can never take the place of the old one. Old books are like old friends. Once lost, they can never be replaced. They are connected with cherished associations which the new ones can never have. And for this irrecoverable loss, I am to blame. I was so careless with my things. This is a warning to me to be more careful in the future.

Yours truly,

Tom