Dear Mr and Mrs Green,
I am writing to thank you for your warm hospitality which I enjoyed when I was in New York.
It was very kind of you to offer me a comfotable and clean room in your house when I was in New York.I like the delicious food cooked by Mrs Green,which made my journey more unforgettable.Hopefully,I can have the chance to taste it in the future.
In addition,I really appreciated your practing oral English with me and I have made great progress in my spoken English.The stay in New York has greatly enriched my experience and widely broadened my mind.
I really hope you can come to China for a visit when it is convenient for you.
Yours sincerely,
Li Hua.