Computers are helpful in many ways. First, they are fast. They can work with information (23) _______ more quickly than a person. Second, computers can work with a lot of information at the same time. Third, they can keep information for a long time. They don’t forget things the common people do. Also, computers are almost always correct. They are (24) _______, of course. But they usually do not make mistakes. These days, it is important to know (25) computers. There are a number of things to learn. Some companies have classes at work. Also most schools and universities (26) _______ courses in computer science. Another way to learn is from a book, or from a friend. After (27) _______ hours of practice, you can work with computers. You may not be an expert, but you can have fun. 23. A. such B. very C. much D. a lot 24. A. complex B. perfect C. certain D. powerful 25. A. for B. of C. on D. about 26. A. offer B. require C. take D. suggest 27. A. few B. a few C. little D. a little