概要：①Many thanks for your kind and warm help.②I am greatly indebted to you for your help.③ Thank you for your generous hospitality.④ It was really exciting to get your New Year's card!⑤ I'm sincerely grateful for all your help in finding me a place.⑥Your note of congratulations is deeply appreciated.⑦Thank you for doing so much to make my trip interesting.⑧Thank you for your kindness to have done me a favour.