根据首字母完成短文
We live in the “computer a  ”. People, such as scientists, teachers, writers and students, use computers to do all k   of work. But more than 30 years ago, computers couldn’t do  m  . They were very big and expensive. Few people were i   in them or knew how to use them. Today computers are smaller and c  . Since they can do lots of work, many people like to use them. Some people even have them at home. Computers became very important, because they can work faster than men and make f   mistakes. They can help people do a lot of things. W   now use computers to write, teachers use them to help teaching, students use them to help study, and children use them to play g  . Computers are very u  and helpful. They are our good friends. Do you want to o   a computer?