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Before 2002，nearly everybody knew that Wang Tao was the first Chinese to take part in a World Expo（博覽會）．Wang Tao，a writer from Jiangsu Province，took part in the 1867 Paris World Expo and wrote an article about his experience．

    But at the end of 2002，some people in Shanghai were surprised to find that the first contact（接觸）with World Expo actually happened 16 years earlier-in 1851，a man called Xu Rongcun took part in the first World Expo ever, the London World Expo．

    Xu Rongcun was a businessman who sold silk（絲綢）and tea in Shanghai．In 1851，when the United Kingdom announced that it would hold the first World Expo，Xu Rongcun thought it was a great chance to show his silk to the world．He sent 12 bags of “Huzhou Silk” to the United Kingdom．

At the beginning of the Expo，the people didn't pay much attention to Xu Rongcun's silk．However because of its excellent quality, the silk won gold and silver medals at the Expo in the end．

If there were no World Expo，Xu Rongcun might just be a successful businessman．But his experience at the first World Expo engraved his name on the history of World Expo．

    根據短文內容，判斷下列句子正誤。正確的用“A”表示，不正確的用“B”表示。

1．Now we all know that Wang Tao is the first Chinese to take part in a World Expo．

2．Wang Tao wrote an article about his experience of the Paris World Expo．

3．In 1867, the first World Expo was held in the United Kingdom．

4．A Chinese businessman called Xu Rongcun took part in the first World Expo．

5．Xu Rongcun's silk won gold and silver medals at the first Expo in the end．