16. _____ has helped to save the drowning girl is worth praising.

A. Who　　　　　　　 B. The one　　 C. Anyone　　 D. Whoever

15. ______ the ancient Egyptians built the pyramids puzzled people for centuries.　

A. Whether　 　 B. What　 C. How　　　　 D. Where

14. ______ anyone should want to kill her was unbelievable.

　 A. Whether　 　 B. That　　 C. What　　　　　　 D. If

13. Some of the doctors are paid almost ______ as the nurses.

A. twice as much 　　　　B. much as twice

C. as much twice 　　　　D. as twice much

12. ______ I’m well again, I can go on with my work.

　 A. Even if　　 　 B. As though　　 C. Ever after　 D. Now that

11. The government has to close those small factories to prevent the water of the river ______.

　 　A. polluting　 B. from polluting C. being polluted　 D. polluted

10. They had a ______ quarrel and John stormed out.

　A. violent　　　 　 B. cruel　 C. strong　　 C. harmful

9. He wants to see changes in the company and I am sure he will, ______.　

A. on time　 　 B. at a time　　 C. at one time　　　 D. in time

8. At last, I made up my mind to speak the truth ______of the whole class.

A. in the present 　　　　B. at the present

C. in the presence 　　　D. at the presence

7. We should try our best to ______ those people after the disaster.

　 A. break out　 　　 B. cheer on　　 C. break up D. cheer up