2. 2.32 Read the text. Add sentences a-e to the paragraphs. There is one sentence that you do not need. Then listen and check. a Maybe he'll change the number to 12%! b So a building whose top floor is 50 may only have 36 floors. c In 2016 a lot of children will be eight years old in China! d Seven is a lucky number in most cultures. e Eight is also a popular number in phone numbers, addresses and PIN numbers.