dear mr. john,
how are things going with you in beijing?
i am writing to show my thanks to you. you tutored me in my spoken english before you went to beijing. with your help i made such rapid progress that i won the first place in the spoken english competition of the city. my achievement is owed to your help. thank you very much.
i have heard that you and your wife will pay a visit to my school. i am very glad at the news. in that case we can see each other again. i am looking forward to your coming. i am sending you a telescope as a small gift. i hope you will like it.
all the best.
yours,liu jie