In different countries, people have different opinions about numbers. For example, Americans don't like number 13. If they invite some friends for dinner and it happened that there are 13 people sitting at the table, the host will invite another friend to join them. Americans always plan to get married on July 7th.
Because it sounds like the word "death" in Chinese. Because of this, many buildings skip（跳）the fourth floor. In Hong Kong, some buildings even skip all floors numbered with 4, such as 4, 14, 24, 35 and all 40-49 floors. Some buildings also skip the 13th floor, because this is seen as an unlucky number in the west. so what's a "lucky" number in China? The Chinese pronunciation of the number "8" has almost the same sound as that of the Chinese character "发[fa:]", which means making a fortune. Some people will even spend a lot of money to have the number 8 in their phone numbers or vehicle license plate（车牌照）numbers. For example, The opening ceremony of the Beijing Olympics began at 8:08 pm. on August 8, 2008. Everybody thinks it was a good day.
A. And simply they call it the fifth floor.
B. But they think number 7 is a good number.
C. So, people think it is a very lucky number.
D. In China, the most unlucky number is four.
E. As a result, a building whose highest floor is 50 may have only 35 physical floors.
