Dear Mr. and Miss Thompson,
I am writing to let you know that I have returned safely. I also wanted to convey my gratitude for your kindness and goodwill. It was the best week. I will never forget you.
You have shown me almost everything in England. I have even seen Windsor castle. Thank you to Mr. Thompson for this wonderful tour. I also want to thank Miss Thompson. She is a great cook.
Before, I could not understand the English language. However, thanks to Uncle Pete, I learned to understand English. Thank him very much.
I hope that one day you will be able to visit our city, and we will definitely invite you to visit.
Best regards,....