10. I thought she was famous, but none of my friends have ______heard of her.　　　

　A. even　　　　　 B. ever　　　　 C. just　　　　　　 D. never

9. There were a lot of people standing at the door and the small girl couldn’t get _______　　　

A. between　　　　 B. through　　　 C. across　　　　　 D. beyond

8. -Are you going to have a holiday this year?

　 -I'd love to. I can't wait to leave this place ______.　　　

A. off　　　　　　B. out　　　　　 C. behind　　　　　 D. over

7. -Did you enjoy yourself at the party?

　　　 -Yes. I’ve never been to　 ______one before.　　　

A. a more excited　　　　　　　　　 B. the most excited

C. a more exciting　　　　　　　　 　D. the most exciting

6. Mr. Smith owns _____collection of coins than anyone else I have ever met.　　　

A. larger　　　　 B. a larger　　　 C. the larger　　　 D. a large

5. This _____girl is Linda’s cousin.

A. pretty little Spanish　　　　　 B. Spanish little pretty　

C. Spanish pretty little　　　　　 D. little pretty Spanish

4. John Smith, a successful businessman, has a ______car.

A. large German white　　　　　　　 B. large white German

C. white large German　　　　　　　 D. German large white

3. It is re ported that the United States uses _____ energy as the whole of Europe.　　　

　A. as twice　　　 B. twice much　　C. twice much as　 D. twice as much

2. Mary kept weighing herself to see how much ______ she was getting. 　

　A. heavier　　　　 B. heavy　　　　 C. the heavier　　 D. the heaviest

5．化合物BrF_x与水按物质的量之比3︰5 发生反应，其产物为溴酸、氢氟酸、单质溴和氧气。

(1)BrF_x中，x＝　　 。

(2)该反应的化学方程式是：　　　　　　　 　　　　　　　　　　　　　。

(3)此反应中的氧化剂和还原剂各是什么?

氧化剂是　　　　　　 　；还原剂是　　　　　 。