20、The Internet began more than thirty years ago, and its goal was to increase communication among universities, the government and some major American businesses by linking their computers together. The Internet makes it easy for them to send large _ _ 21 _ _ of information quickly.
As time passed, more people began using the Internet. In 1981, the Internet linked 213 computers. Only nine years later, it _ _ 22 _ _ more than 350,000 computers. Today experts say there are about 300 million computers connected to the Internet.
The Internet has changed the way people work. They can travel from place to place _ _ 23 _ _ getting in touch with their office all the time via the Internet. A recent report in the America magazine, Newsweek, said more than 89 million Americana now use the Internet at work. Companies around the world now use the Internet. One can hardly imagine how business could be done _ _ 24 _ _ the Internet.
The Internet is becoming more important than any one had thought possible. And its importance is _ _ 25 _ _ to increase more in the future.