表明写作意图
说明理由
再次表示感谢及表达视福
表达感谢
I am writing this letter to thank you for.….
I would like to convey in this letter my sincere gratitude to you for.….
With deepest gratitude I write you this lefter.
感谢理由
I still remember that when I was...
The memory is sill fresh in mind that.….
Had it not been for you rencouragement and guidance in….,I fear that I couldn't have achieved so much. (倒装+虚拟 要不是您的鼓励和指导,我可能不会.….)
Everyone will agree that it was you who.. (强调句 正是您给了我指导 )
I shall always remember your help. It not only ...,,but also ...
Nothing could ever return the favor you gave me.
I appreciate it more than I can say.
再次表示感谢及祝福
My true gratitude is beyond words.
Please accept my appreciation and best wishes.
I wishyou good health and good luck.
I wish happiness may follow you everywhere.
I hope that I will have the opportunity of returning your kindness by doing..