A possible version:

Dear Alice:

I'm glad to know that you will travel to Shanghai. As we all know, Expo 20 10 will be held in Shanghai, China from May 1 day to October 3 1 day. The theme of the World Expo will be "Better City, Better Life". It is hoped that the Expo will attract about 200 countries and international organizations and 70 million tourists from home and abroad. In addition, it is expected that China will present the world with one of the most successful, wonderful and unforgettable expositions. Expo will help to create an eco-friendly society and maintain the sustainable development of living environment.

I look forward to seeing you soon.

your

Li Hua

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