10. We must 　　　　　　　a new teacher at once to the mountain school.

A. appreciate　　　 B. appoint

C. appeal 　　　　　D. approach

9. Chinese scientists 　　　praising because they have made great progress in their study of DNA and have gained international recognition.

A. need　　　　　　　　 B .examine

C. deserve　　　　　　 D. measure

8. It was not to be unkind 　　　　. I was just so angry that I couldn’t control myself at that time.

A. in my opinion　　　　　 B. in my power

C. in my nature　　　　　 D. in my personality

7. -What do you know about Bill Gates?

　 -As far as I know, when he was a child, he showed a 　　　　of interests in everything around him.

A. series　　　　　 B. variety

C. good deal 　　　D. large amount

6. Be sure to ask him for help 　　　. He is very kind and helpful, and is always ready to help you.

A. if not　　　 　 　　B. if so

C. if necessary　　　 D. if only

5. To our shock, this terrible violent crime was 　　　　by some young boys under the age of 16.

A. committed　　 B. confirmed

C. considered　　 D. conducted

4. He gained 　　　　　experience in information technology by working in Microsoft.

A. valuable　　　　　　　 B. valued

C. worth　　　　　　　　　 D. worthy

3. Some researchers believe that there is still doubt 　　　　a cure for AIDS will be found.

A. which　　　　　　　　　　　 B. what

C. that 　　　　　　　　　　　D. whether

2. You cannot legally 　　　　　the property until the contract is signed.

A. take the place of　　　　　 B. take care of

C. take possession of　　　　 D. take notice of

从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

1. -He worked all the night in order to finish the design.

- 　　he is so tired.

A. No doubt　　　 B. No risk

C. No use　　　　 D. No wonder