1.I am writing to expremy thanks for … 我写这封信是为了表达我对……的谢意。
2.I’d like to take this opportunity to expremy 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。
3.Thanks again for your kind help .对你的帮助再次表示感谢。
4.I am grateful to you for… 感谢你……
5.I appreciate it more than I can say.感激不荆
6.I can never thank you enough.感激不荆
7.I deeply appreciate your sincere help.我深深地感谢你诚恳的帮助。
8.Many thanks for your kindneand hospitality.多谢你的好意和好客。
9.Thank you from the bottom of my heart for..从心底里感谢你，因为……
10.Again，I would like to expreour warm thanks to you.再次向你表示谢意。
I am writing to show my sincere gratitude for all of you.Now that I am home and on my own again I feel extremely happy.During the time I lived at the Rehabilitation center and was under your tender care, I promised myself I would write a letter of thanks as soon as I was able.
Abundant thanks to each one of you for your patience, expertise and genuine concern.It was you who helped me believe in myself and gave me assurance that I could walk again.I would never forget each word you said to me and the things you have done to me.Forgive me for the times I lashed out at you in frustration and thank you for understanding and remaining firm with me.
Never stop your beautiful way of working with people.Your help really means a lot to me and anyone who in trouble as well.