I am writing to extend my sincere gratitude for __________________(感谢的原因). If it had not been for your assistance in __________________(对方给你的具体帮助), I fear that I would have been___________________(没有对方帮助时的后果).
No one would disagree that it was you who___________________(给出细节).
Again, I would like to express my warm thanks to you! Please accept my gratitude. Best wishes.
(注意：抬头的Dear+人名顶格靠左写，后面一定要加逗号","。落款Yours sincerely和写信人名顶格靠右写，yours sincerely后面也一定要加逗号","。Yours sincerely为书信的惯用套话，这个必须得有!)拓展资料
I am writing to you to express my thanks for your help in learning English. You are one of the best teachers who I have ever met. There are many good points that I learn from you.
During these days in your class, I have acquired much knowledge from you and it really helps me a lot. Firstly, you let me know what the west thinking pattern is —straight thinking pattern. As an English learner, it is important for me to understand the difference between them. There is no denying the fact that this can help me with my examination and interaction with foreigners. What's more, I'm glad to be your student, and I am very happy to learn the course under your guidance. English is an important tool, through which we can share our experience with the world. I treasure the chance of learning English, and I enjoy the happiness from your course.
The last not the least, please forgive those mistakes I have made which may upset you. What I have learned from you will help me pass the coming examinations and also be useful for my further education in abroad. It is not only a progress of learning, but also a cultivation of my ability.
May everything go well around you.
thanks again for your kind help.对你的帮助再次表示感谢。
my true gratitude is beyond any words description.任何语言都不能表达我的真挚谢意。
please accept my thanks, now and always.请永远记住我的谢意。
your help is very much appreciated by each one of us.我们每个人都非常感谢你
i am writing to express my thanks for...我写这封信是为了表达我对„„的谢意
i would like to convey in this letter my heartfelt thanks to you for... 在信中我要为……表达我真挚的谢意
thank you so much for the gift you sent me. its one of the most wonderful gifts i ever got.非常感谢你给我寄来的礼物，这是我收到的最好礼物之一。
many thanks for all the good things you have done in helping us to...非常感谢您为帮助我们„„所做的一切。
i would like to take this opportunity to express my great appreciation for your timely help and assistance.我谨借此机会感谢您给予我们的及时帮助和支持。
on behalf of my whole family, i would like to extend my sincere gratitude for...我谨代表我全家对„„表示真诚的感激之情。
nothing will be able to erase our wonderful memories, we will nurture them forever.没什么能抹掉我们美好的记忆，我们会永远铭刻在心。
Dear Head Master of F & B Department:
First of all, we thank you for the perfect service and providing delicious foods, which give us a deep impression for everything you done. Here, our company specially thanks you and your team, and sends the best regards and the most sincere gratitude to all of you. At the same time, we specially thank an outstanding employee ------ ×××whom gave the most cooperation during the events.
At the end, we sincerely thank for the all supports from you and your colleagues.
Millions of thanks!
Beijing ××× Co., Ltd.