写作 假设你有位来自伦敦的朋友,他叫约翰（john）.他现在住在上海.请根据以下内容提示用英语写一

Dear XX,it's a pity that you didn't go with us to Beijing last Saturday.It was really a good trip.I went with one of my classmates in the Shanghai University.He is also from London and he is a fan to the Chinese culture too.We took the train instead of the airline to Beijing.It only took us seven hour to get to Beijing.That's amazine.We went to lots of tourism places and did lots of sightseeings.We also tried the authentic Beijing food,like the roast duck.I like it a lot.We came back on the Sunday night.I'm so tired now.I need go to sleep now.I will talk to you later.
Yours sincerely,
John