An Englishman was showing a foreign visitor ___（1）___ London. "What's that strange building?" asked the visitor. "That's the Tower of London. ""I see. How ___（2）___ did it take to build it?" "About 500 years. ""In my country we can build it ____（3）____ five months," said the visitor. Shortly after that they came to the St. Paul's Cathedral. "Very interesting." said the visitor. "How long did it take to build it?" "Nearly forty years," said the Englishman. "In my country we can finish it in forty days," said the visitor. This went ___（4）___ all day. They visited most of the best known buildings in the city. Every time they saw a new one, the visitor asked what it was and how long it took to build it. Then he said that they ___（5） ___ do the same thing much faster than in this country. At last the Englishman got angry with the visitor though he tried not to show it. Several days later they came to the House of Parliament and the visitor asked his usual question. "What's that?" The Englishman answered, "I've no idea. It wasn't there last night （3）.( )

A.could

B.on

C.in

D.around

E.long