2. 我们保证我们的产品质量优良。

We _______ _______that our _______ have good _______.

1. 在现代社会中，电脑是非常普通的工具。

______ _______ _______ world computers are very common tool.

10. - I need a friend _______. - Why don’t you chat on line?

A. talk　　　　　 　B. speak　　　　　　　　 C. to talk with　　　 D. to talk about

9. Lights are used ______ giving us light. They have been invented for a long time.

A. as　　 B. for　　 C. in　　　　 D. by

8. - You haven’t finished your exercise yet, have you?　 - _______.

A. Yes, I haven’t　　 B. No, I haven’t　　　　 C. Yes, I do　　　　 D. No, I do

7. -_______ have you been in the zoo?　 - About two hours.

A. How often　　　 B. How long　　　　　 C. How much　　　 D. How many times

6. There are four hundred exchange students in our school, _____ them are from Korea.

A. three hundred of　　 B. three hundreds of

C. three hundred　　　 D. three hundreds　

5. The bridge __________ July 7, 1845.

A. has built on　　　 B. was built in　　　　 C. is built on　　　　 D. was built on

4. I was _______ by the _______ question.

A. confused; confused　　　　　　　　　 　　B. confusing; confusing

C. confused; confusing　　　　　　　　　　 D. confusing; confused

3. I haven’t planned ________ the game at all, so I will not be sad if I fail.

A. win　 B. wins　　 C. to win D. winning