Dear Mr and Mrs Smith,
I`m writing to thank you so much for giving me a warm reception. I also want to inform you that I come back safe and sound. I was really happy that I could see my family and friends, but sometimes I miss Nottingham and you of course.
I`m really grateful to you for your kindness and help. How I can ever repay you ? I suppose I won`t be able.
Every day with you was special. I remember each despite the fact that you put me up for such a long time. I have constantly in my mind our outing to amusement park, where I was laughing all time. It was great!
I`m writing because I also want to invite you to my country. I hope you`ll accept my suggestion. I`ll try to arrange interestng stay, which you won`t forget , like me
I look forward to next letter from you.
Love XYZ