Dear Sarah,
I am terribly sorry to tell you that I am unable toattend your birthday party next Thursday evening. That is owing to the fact that my younger brother suddenly fell ill and was taken to a hospital thismorning. I have to go there immediately and take care of him. As told by thedoctor in charge, it will take around five days for him to recover and I haveasked my boss for a leave.
I really regret that I cannot go to celebrate yourbirthday personally and would miss the perfect chance of enjoying myself withall our old friends. I have chosen a small gift for you and will send it to youtomorrow to show my best wishes. Besides, please give my regards to our friendswhen you meet them at the party.
Cordially, （sincerely）
Li Hu
亲爱的老师：
对不起，但是教我们让你经历了很多困难。我知道我早就应该写这封信了，但直到今天才实现。我希望你能接受这个迟来的道歉。
自从我们懂事以来，我们就知道我们应该尊重老师，每个爱我们的人和我们爱的人，但这只会让你不开心。有时候我们在课堂上或者其他一些问题上不主动说话，不是不知道自己错了，而是自己有罪，根本回答不出来，或者知道该怎么做却拧不出力气。当然，有时候我的意思是有时候我们真的很想和老师积极合作。我也知道我能做些什么来配合老师，但就是不能付诸行动。可能是因为青春期吧。大家都有这种感觉，但是看到老师就很难过。说实话，我们心里也很难过，不希望事情发展成这样。这就是为什么我们今天写信道歉。老师，我们错了，但是我们真的爱你！
老师，这不是我们的借口。回想起来，我们上小学的时候，刚开始踏入学校。课堂上回答问题似乎很容易。现在不知道发生了什么。老师，我们知道你对我们的希望是因为你爱我们。那种爱不是言语可以轻易表达的。很深很执着，让你生我们的气。这一切都是为了我们好。老师怎么能不爱学生呢？但是让你生气和失望的是你深爱的学生。想到这，心里总有一种沙沙的感觉。是内疚，内疚，也就是说......
我深深地认为，这一切都是我们的错，甚至我们根本不会珍惜这种爱。这种心理源于我们的老问题，永远无法超越自己，敞开心扉。所以，我们下定决心要赔罪。老师依次给了我们机会。这个机会是从你不再生气开始的。让我们用行动向你证明，我们需要你的爱，我们深深地爱着你！
道歉者：
时间：xx年xx月xx日
Dear Tom,
I am afraid that I cannot pick you up at the airport tonight, and I’m really sorry for not doing as what I promised. I know there is no excuse for my fault, but I hope that after I tell you the reason, you can forgive me once.
The new boss of my company urgently called all of the staffs together to have a meeting tonight, no one can ask for leaving. So I cannot get out of our company at the time when you arrive in our city.
To make you smoothly get back to your hotel, I rent a taxi to pick you up, so please just wait for the call from the taxi driver, and we will meet each other tomorrow morning.
Sincerely yours,
Mary