1 . 看，你的电脑又坏了吧。为了省几块钱买最便宜的电脑一点意义都没有。
See, your computer has broken down again! It doesn't____to buy the cheapest brand of computer just to save a few dollars.

3 . Sometimes things don’t_____(结果是) fine as we think they’re going to. （根据汉语提示填空）

4 . Though they are twins, they don’t r________ each other in appearance or nature. (根据首字母单词拼写)

5 . – Why you didn’t handed in your exercise paper?
–Sorry, but I ____ that it should be turned in today.

A．didn’t know	B．hadn’t known
C．haven’t known	D．don’t know

6 . Jane won't join us for dinner tonight and        .

A．neither won't Tom

B．Tom won't either

C．Tom will too

D．so will Tom

7 . We don’t a_______(预料) any major problem. (根据中英文提示单词拼写)

8 . They didn’t _______(认出）her when she wore the dark glasses.

9 . 对于青少年来说，沉迷于网络不是一件不寻常的事情。（双重否定）
It is_____for teenagers to______the Internet.

10 . “All the students don’t work hard.” means “_________”

A．Not all the students work hard.	B．Every student works hard.
C．None of the students works hard.	D．All of the above.