Dear Mr John,
亲爱约翰先生，
How are things going with you in Beijing?I am writing to show my thanks to you.
你在北京一切安好吗？我写这封信是为了表达我对你的感谢。
You tutored me in my spoken english before you went to Beijing.
在你去北京之前，你辅导我学习英语口语。
With your help I made such rapid progress that i won the first place in the spoken english competition of the city.
由于你的帮助，我进步很快，在市英语口语比赛中我获得了第一名。
My achievement is owed to your help. Thank you very much.
我的成就都是源于你的帮助。非常感谢。

I have heard that you and your wife will pay a visit to my school. I am very glad at the news.
我听说你和你妻子将要来拜访我们学校。我很开心听到这个消息。
In that case we can see each other again.
如果那样的话我们又可以再见到彼此了。
I am looking forward to your coming. I am sending you a telescope as a small gift. I hope you will like it.
期待你们的到来。我给你寄了一个望远镜作为一份小小的礼物。希望你喜欢。
All the best. Yours, Liu Jie
最好的祝愿，刘杰