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Wang fei was a volunteer of the 2010 world expo. During the May Day holiday, he served as a guide, leading some foreigners to visit the expo. They enjoyed the travel very much, and they have taken many photos. All of the foreign travelers were astonished at the beautiful sites and the delicious food in Shanghai, as Shanghai government has prepared much for the 2010 world expo. Of course, it also owned a lot to Shanghai citizens' hard effort and strong support Shanghai citizens took it as their honour and tried their best to hold a wonderful expo to the whole world and welcome everyone from different countries.