请认真听下面一段录音,在短文空白的位置写出正确的答案。录音将反复播放三遍,请听录音。 Many people are superstitious about numbers. They think that there are lucky numbers and unlucky numbers. The number “13” is often 1 unlucky. In some parts of the world, buildings have no 13th floor and streets have no houses with the number “13”. In Japan, “4” is 2 to bad luck. Why? Because the word “four” in Japanese is 3 the same as the word “death”. The Japanese never 4 of four knives, four napkins, or four of anything. “7” is a lucky number in many places, and “8” is thought to be a lucky number in Japan and China. In China, businesses often open on August 8, and many couples register to 5 at eight past eight on August 8.