Dear Liu Dong,
I'm back at school now. I wish to express my thanks to you for the wonderful vacation I spent with you and your family. During the vacation you taught me how to swim, boat and fish. I really appreciate① your taking time off work to take② me around and show me so many places.
Your mother is such a terrific③ cook! I think I must have gained 10 pounds just in the week I spent with you. Surely I've spent a happy vacation, which will be remembered for long.
