Dear_____,

I am now writing these few lines to express my sincere thanks for感谢事由. I’d like you to know how much your help/hospitality meant to me. You h***e a positive genius for对收信人某一方面的赞美.I not only enjoyed____ , but also_______ . I shall ever remember _____ as one of the most_____ in my life./It is just your generous help that makes it possible for me to overcome those difficulties. It is so kind of you to help me through those hard times, which would be cherished in my heart forever.