We live in computer age (时代). People    51    scientists, teachers, writers and even students use computers to do all kinds of work. But more than 30 years ago,    52    couldn't do much. They were very big and expensive. Very    53    people were interested in them and knew how to use them. Today computers are smaller and    54    . But they can do a lot of work; many people like to use them. Some people    55    have them at home.

Computers become very important because they can work    56    than people and make fewer mistakes. Computers can    57    people do a lot of work. Writers now use computers to    58    . Teachers use them to help teaching. Students use them to    59    . Computers can also remember what you    60    them. Computers are very useful and helpful. They are our friends. Do you want to have a computer?

(   )51. A. like　 　　B. as 　　　　　　C. and 　　　　　     D. with

(   )52. A. students 　B. scientists 　　　 C. teachers 　　　　   D. computers

(   )53. A. few 　　　B. a few 　　　　　C. little 　　　　　   D. a little

(   )54. A. cheap 　　B. cheaper 　　　  C. more expensive　　  D. expensive

(   )55. A. even 　　 B. still 　　　　　 C. already 　　　　　　D. yet

(   )56. A. fast　 　　B. faster 　　　　 C. slow 　　　　　　　D. slower

(   )57. A. help 　　  B. make 　　　　 C. stop 　　　　　　　D. use

(   )58. A. write 　　 B. play 　　　　　C. study 　　　　　　  D. learn

(   )59. A. sing 　　　B. study 　　　　 C. dance 　　　　　    D. watch

(   )60. A. put in　　　B. put on 　　　　C. put into 　　　　　  D. put up