5. Animals can't be separated ________ the human beings. If we want to live well, we must keep the balance of nature.

4. E-mail systems at thousands of companies and government offices ________ the world were attacked by a virus called "Melissa" that disguises itself as an "important message" from a friend.

3. The little boy ran across the road in a hurry and just missed being run ________ by taxi.

2. Taiwan is an island ________ the coast of Mainland China in the Pacific Ocean.

1. The telephone has an obvious advantage ________ E－mail because the former helps one get in touch with one's friends faster than the later.

10. Janet as well as the other young people who ________ sent abroad by the government ________ brought up in the small town.

A. was; was B. was; were C. were; were D. were; was

B)根据句意和课本内容，用正确的介词或副词填空。(10分)

9. Oh, boy, why are you killing your time this way? Can't you find something ________ doing at all?

A. useful B. worth C. valuable D. good

8. Cost will be reduced by ________ 30% if computers are used.

A. as many as B. so many as C. as much as D. so much as

7. The meeting was of great ________ and the information he gave us was ________ .

A. important; value

B. importance; valuable

C. importance; value

D. important; valuable

6. Can you tell me what you are ________ at present?

A. considering doing

B. considering to do

C. considered doing

D. considered to do