假设你叫王林，在伦敦学习已经两个月了，写信给你在国内的朋友李平，介绍一些伦敦的情况：
1. 伦敦是英国的首都，是一个大城市，在泰晤士河畔。人口约七百万。
2. 伦敦是一个繁忙的都市，人们非常友好并且乐于助人，但总是来去匆匆。
3. 给你印象最深的是伦敦的天气变化无常(chop and change)。
4. 城里有许多著名景观，你只游览了伦敦博物馆和著名的海德公园（Hyde Park）。 Dear Li Ping,
    How time flies! It has been two months since I left China and came to London.
    As you know, London is the capital of Britain, which is on the River Thames. It’s a very big city with a population of about 7 million. It is also a busy place. People here are usually friendly and helpful, but they are often in a hurry. What impressed me most is that the weather is chopping and changing. I begin to understand why the English people always talk about the weather. London has many beautiful parks and gardens and other famous places of interest. I have just been to London Museum and Hyde Park recently.
    How are you now? I miss you very much. I hope I can hear from you soon.
    Best wishes!
                                                                 Yours,
                                                                     Wang Lin