In the UN six languages ________ for business.

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下面哪个选项是不明飞行物的缩略形式?

　　A．CCTV　　B．UN　　C．UFO D．IQ

知识阅读

　　All over the world men and women and boys and girls enjoy sports. Since the days of long ago, people have called their friends together to spend hours, even days playing games. Sports help people to live happily. When they are playing games, people move a lot. This is good for their health. Many people enjoy sports by watching others play.

　　Games and sports grow out of the work people do. In Portugal (葡萄牙) many people work to catch fish. Sometimes they use their boats for racing(比赛) .The Arab (阿拉伯人) people are famous for their horses. Horseback riding is a very exciting sport in Morocco (摩洛哥) . Hunting (打猎) and fishing are work for many people who must get their food this way. But for other people they are sports.

Questions:

1．What do people all over the world enjoy?

2．What are sports good for?

3．What do sports and games grow out of?