欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

(  )8. A.  in       B. into          C. on          D.up

(  )7. A. help      B. make         C. use          D. up

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

(  )5. A But        B. And         C.  since       D.  faster

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

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

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

(  )1. A. many of    B.. all kinds of   C. a lot        D. very much

10.However,            (專(zhuān)業(yè)的)athletes can also have many probles。

    We live in the “computer age(時(shí)代) ”. People like scientists, teachers, writers(作家) and even students use computers to do   1  _work . But more  than 30 years ago, __2__  couldn’t do much. They were very big and expensive. Very_3___people were interested in them and knew how to use them . Today  computers are smaller and  4   . __5_  they can do a lot of work, many  people  like to use them, Some people even have them at home.

    Computers become very important because they can work_6__than men and  make fewer mistakes. Computers can__7__people do a lot of work. Writers now  use computers to write. Teachers use them to study and children use them to play  games. Computers can also remember what you put     8     them. Computers  are __9__ and helpful. They are our good friends.

Do you want to__10 _a  computer?

9．Watch out ！It could be d             .