Dear______，
①Iamtrulysorrythat______（道歉的原因）。
②Thereasonisthat______（介绍原因）。
③Onceagain，Iamsorryforanyinconveniencecaused.
④Hopeyoucanacceptmyappologiesandunderstandmysituation.
Your ssincerely，
LiMing
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 dont 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,
Li Ming
Dear Prof. →←Patent,
I am very sorry to inform you that I did not manage to complete the book report you assigned last week, due to a sudden illness falling upon me a few days ago.
For the past few days I have been in hospital with a continuous fever, which has thus prevented me from any academic activity. I hereby submit the doctor's note. I would be very much obliged if you could grant me another week for the task, as my health is turning better.
Hope you can understand my situation and accept my apology.
Yours faithfully, Li Ming
译文
尊敬的Patent教授：
我非常遗憾地告知您我没有完成您上周布置的读书报告，因为几天前我突然生病了。
过去的几天中我一直持续高烧，住在医院，因此无法进行任何学术活动。随信是医生的诊断书。
如果您能再给一周时间来完成它我将感激不尽，因为现在我的身体正在好转。希望您能理解我的处境并接受我的道歉。
您真诚的，李明