Dear Mr. Smith:
Very grateful to you and your family in my visit to the United States during my warm hospitality. I think that in the United States during the period given me the deepest impression in your home is the house. Perhaps I will have an opportunity to go to New York in May 2002 to attend the convening of an international conference, if that is the case, I will try my best to Boston to see you, and sincerely hope that you have the chance to visit China.
Please give my best regards to you wife .