假如你叫李明，你有一位英国网友叫Tom，他听说过中国的故宫，但知之不多，于是给你发来了email，请你向他介绍一下有关故宫的情况。请你根据下面提供的一些要点给他回100字左右的电子邮件。
1.故宫（the Palace Museum）又叫紫禁城（the Forbidden City）。它于1407年开始修建，20万人花了14年的时间，于1420年建成。
2.它所有的宫殿一共有9,999个房间。在中国，9这个数字传统地被认为是吉祥的。
3.现在，每周星期三，故宫免费向中国学生开放。
4.故宫有着中国历史上5千年的珍宝（precious treasure）。请他亲自来看一看。
Dear Tom,
It is nice to receive your email. Now I'd like to tell you something about the Palace Museum. Palace Museum is also called the Forbidden City. It took 200,000 workers more than 14 years to build it. The Forbidden City was finished in 1420.As the largest museum in the world, the Palace Museum holds cultural treasures from the past 5,000 years of Chinese history. The City's palaces have 9,999 rooms altogether. Chinese people traditionally have thought of nine as a lucky number Students from all over China can now visit it in groups free of charge every Tuesday. The museum is under reconstruction.
I hope you can come to China and take a look at this museum with your own eyes.
Best wishes!
Yours,
LiMing