Jane nor Jack been to Beijing.
An Englishman was showing a foreign visitor around London. "What's this strange building?" asked the visitor. "This is the Tower of London. ""I see. How long did it take you to build it?" "About 500 years, ""In my country we can set it up in five months, "said the visitor. Soon they came to St. Paul's Cathedral. "Very wonderful!" said the visitor. "How long did it take you to build it?" Almost 40 years," said the Englishman. "In my country we can finish it in 40 days at most," said the visitor. This continued all day. They visited most famous buildings in the city. Every time they saw a new one, the visitor asked the same questions. Then he said that they could do the same thing much more quickly in his country. At last, the Englishman became angry with the visitor though he tried not to show it. A few days later, they came to the House of Parliament and the visitor asked his usual question, "What's it?"
The Englishman answered, "I have no idea. It wasn't there last night."
Because he wanted to show that.