---- Water can dissolve almost anything and give nutrients to creatures.

---- Yes, and that’s one of its ______.

A. characters        B. properties        C. qualities         D. ability

 ---- What is the cost of your shirts here, sir?

---- It depends on which fashion you want to buy, and the prices _______ from 100 dollars to 500 dollars.

A. increase        B. reach         C. range          D. different

 It was in the lab____ was taken charge of by Mr Harris ____ they did the experiment.

A. which; that      B. that; which      C. which ; where        D. that; who

 The traffic light is red, so I _____stop my car.

A. must      B. have to       C. can      D. mustn’t

 Phillip, can you see something red _____ in the distance on the water?

A. Floated      B. float        C. being float     D. floating

 Sarah hopes to become a friend of _____ shares her interests.

A. anyone       B. whomever     C. whoever      D. no matter who

 I don’t think the snow will _____ our plans for a picnic.

A. affect           B. effect           C. infect           D. influence

 —— I can’t get through to the general manager’s office anyhow.

—— The line is busy. Someone _____ the telephone.

A. must use     B. uses     C. must have been using     D. must be using

 John like football while his sister ____ it.

A. dislikes         B. don’t like          C. dislike          D. unlike

阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项。

Your friends might be in Australia or maybe just down the road, but they are all just a few clicks away. Life has   1for millions of teenagers across the world who now make friends online.   2you use chat rooms, QQ, MSN or ICQ, you are   3of a virtual community (虚拟社区).

"I rarely talk with my parents or grandparents,   4I talk a lot with my old friends on QQ," said Fox's Shadow, the online nickname (网名) used by a Senior 2 girl in China. "Eighty per cent of my classmates use QQ   5school."

QQ is the biggest messaging   6in China. A record shows 4 million people used it one Saturday night in October,   7to Tencent, the company which developed QQ.

And Fox's Shadow might well have been one of them. "I log in (登陆) on Friday nights, and Saturdays or Sundays when I feel  8. I usually   9about 10 hours chatting online every week," she said. "But I rarely talk with  10, especially boys or men."

Even though she likes chatting, she is careful about making   11with strangers online. "You don't know   12you're talking to. You should  13be careful about who you trust online."

Many people would like to meet offline when they feel they have got to  14someone very well. Fox's Shadow once met one of her online friends face to face. It was a girl who was a comic fan like   15and they went to a comic show together.

However, not all teenagers have been so   16. At the beginning of this year, a 17-year-old girl in Liaoning Province was killed after meeting a friend she had found on QQ. The criminals (罪犯) weren't   17until last month.

A 16-year-old Beijing boy, known online as Bart Simon, dislikes QQ users. "I used to chat on QQ, but I found that most people were talking   18," he said. Now he chats online in English, using MSN. But he spends little time chatting as he sees it as a  19of time and money. "If you are really   20to it, sometimes you just can't concentrate (集中精神) in class," he said.

1.A. improved           B. become            C. changed         D. increased

2.A. Whether            B. If                C. When            D. Unless

3.A. member             B. part              C. partner         D. number

4.A. but                B. as                C. when            D still.

5.A. before             B. at                C. after           D. since

6.A. service            B. product           C. structure       D. organization

7.A. granting           B. depending         C. considering     D. according

8.A. sleepy             B. tired             C. bored           D. busy

9.A. take               B. cost              C. pay             D. spend

10.A. friends           B. adults            C. males           D. strangers

11.A. relation          B. touch             C. contact         D. friends

12.A. who               B. which             C. whose           D. these

13.A. often             B. usually           C. sometimes       D. always

14.A. know              B. recognize         C. tell            D. judge

15.A. herself           B  she               C. anybody else    D. everyone

16.A. good              B. fortunate         C. safely          D. healthy

17.A. kept              B. held              C. caught          D. killed

18.A. uselessness       B. noise             C. nonsense        D. rubbish

19.A. short             B. lack              C. waste           D. little

20.A. kept              B. held              C. addicted        D. stuck