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It's nice to (accept改成receive) your email. Now I'd like to tell you something about the Palace Museum. It (cost改成took) 200.000 workers (去掉for) 14 years to build it. It was finished in 1420. (Like改成As) the largest museum, the Palace Museum (held改成holds) treasures from the past 5,000 years of Chinese history. It has 9.999 rooms. The Chinese traditionally think 9 as a (luck改成lucky) number. To our joy, we Chinese students can now visit it in (group改成groups) (freely改成free) of charge every Tuesday. I hope that you can come to China (or改成and) take a look at this museum (by改成with) your own eyes
(It改成As) can be seen, more and more people own mobile phones in China now, At the end of 2002, there were 20 (millions改成million) mobile phone users. By 2005 (a改成the) number reached up to 30 million. People've found mobile phones (convenience改成convenient 或 在convenience前面加上of). They can get in touch with each other whenever (or改成and) wherever they like. There're different functions to (meeting改成meet) different needs, such as (surf改成surfing) the Intemet. However, it may bring us some trouble. For (去掉an) example, the radiation from the phone may do harm (加入to) our health. In spite of this, the number of people having mobile phones (are改成is) increasing steadily.贊