Computers are helpful (1)                          many ways. First, they are fast. They can work with information even (2)                            quickly than a person. Second, computers can work with a lot of information at the same time. Third, they can (3)                    information for a long time. They do not forget things that the common people do. (4)                   , computers are almost always correct. They are not perfect, but they usually do not (5)                    mistakes.

     Recently, it is important to know about computers. There are a number of things to learn. Some companies have classes at work. In addition, most diversities offer day and night courses in Computer Science. Another way to learn is from a book, or from a friend. After a few hours of practice, you can work with computers. You may not be an expert, but you can have fun.

1.  A. at                     B. on                    C. in                     D. over

2.  A. more                B. rather               C. much                D. less

3.  A. hold                 B. keep                 C. stay                  D. carry

4.  A. Moreover         B. However          C. Therefore         D. Nevertheless

5.  A. do                    B. make                C. have                 D. take