用英语写信，不少于80字，信的格式要全。English

Dear David,
Thank you for your treating during the time I was in New York, I had a great journey.
Your mom is warm hearted and friendly, she regards me as if I was her kid. I like the food your mom cooked to me. I will never forget those delicious dishes.
And your father really helps me a lot with my life, I learned a lot from your father. I always enjoying talking with your father, he is knowledgeable and humorous.
It is an unforgettable experience for me, I was happy, thanks again my dear friend.
Please send my best wishes to your parents.

Yours sincerely
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Month/day/year

Yours sincerely
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Month/day/year在左下方

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