英语作文,去桂林旅游受到同学迎接的感谢信

Dear xx,
I'm back at school now.I wish to express my thanks to you for the wonderful may day holiday I spent with you .During the vacation you taught me how to swim,boat and fish.I really appreciate your taking time off study to take me around and show me so many places.And your friends look so friendly .Surely I've spent a happy vacation,which will be remembered for long.I hope you will be able to visit our school sometime.Thank you again,let's keep in touch !yours XXX