21. ______ he could get a good grade in the competition, he practiced his oral English.

　 A. So that　　 B. In order that　　 C. As though　　　 D. Even if

20. ______ to the party to celebrate the success of their basketball team made John unhappy.

　 A. Having not been invited　　　　　　　　　 B. Not to invite　

C. Not having invited　　　　　　　　　 D. Not having been invited

19. The young man lives in Tangshan and he ______ Hong Kong on business this evening.

　 A. has left for　　 B. is leaving for　　 C. will leave　　 D. is leaving

18. Scientists have reached the conclusion ______ the temperature of the Earth is getting higher and higher.

　 A. when　　　 B. what　　　 C. whether　　 D. that

17. He has admitted______ kept his word, which makes others unable to believe him any more.

　 A. not to have　　 B. not having　　 C. to not have　　 D. having not

16. It was the information______ he had collected in the library______ was of great help to him.

　 A. which; which B. that; which　　 C. which; what　　　 　 D. that; that

15. Assign it to ______ you think can deal with the problem properly.

　 A. who　　 B. whoever　　 C. whomever　　 D. whom

14. I failed in the maths test last month; never in my life ______ so ______.

　 A. have I felt; disappointed　　　　　　　　 B. I have felt; disappointed

C. did I feel; disappointing　　　　　　　　　 D. I felt; disappointing

13. Mary bought a very useful English-Chinese dictionary, and ______ was reasonable.

　 A. the price of whose　　 B. its price　　 C. which price　　 D. the price of which

12. The headmaster urged that the young teacher ______ his students in a proper way.

　 A. educate　　 B. educated　　 C. would educate　　 D. must educate