2、i 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.
6、your note of congratulations is deeply appreciated.
7、thank you for doing so much to make my trip interesting.
8、thank you for your kindness to have done me a favour.