Dear madam,
I'm glad to tell you, I have already returned home safely. Thank you for looking me so well in the United States, I still remember the time I live in your home, you taught me a lot of knowledge that the books in the school didn’t tell me .you taught me to live. Under the care of you, I quickly into your family, understand a lot of American culture, improving my foreign language level, your kindness, your passion and your patience, I appreciate it. Although I returned home, but I won't forget the things I learned from you. Beside, If you come to China, you can come to my house, I can be you tourist guide, take you to visit The Great wall and The Summer Palace .all in all , Thanks~~
Your sincerely.