Dear_________,
I am writing this letter to express my sincere gratitude for___________. Had it not been for your assistance in ___________, I fear that ___________may not have____________. I'd like you to know that your help __________. It not only____________, but also__________. I shall always remember__________.
I hope that I will have the opportunity of returning your hospitality by inviting you to ______. Will you kindly let me know whether you____________? I am looking forward to seeing you soon!
Again,I would like to express my thanks to. Please accept my appreciatin and pass my best wishes on to ____________. I hope to hear from you soon.
Yours,
__________
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