24. （ ）'He picked up the _____ and dial a number. A. receiver B. microphone C. megaphone D. hook ...

19. （ ）'He is ________ about his chances of winning a gold medal in the Olympics next year. A. optimistic B. optional C. outstanding D. obvious ...

14. （ ）'He wrote his _____ for the degree of PH.D in three years A. paper B. essay C. article D. thesis ...

9. 作业答案来源：www.vu80.com 更多资源共享。 （ ）'He always shows haughty ____ toward his colleagues A. behaviour B. action C. conduct D. benefit ...

4. （ ）'Friendly relationship can no longer be _____ between us A. kept B. conserved C. maintained D. preserved ...

24. （ ）'Between 1974 and 1997 , the number of overseas visitors expanded ________ 27%. A. by B. for C. to D. in ...

19. （ ）'During observations made over a fifty-year period the power output of the sun has_____ than a few tenths of one pecent A. varied by no more B. varied no more by C. not varied more by D. more va...

14. （ ）'Eye contact is important because wrong contact may create a communication ________. A. tragedy B. vacuum C. question D. barrier ...

9. （ ）'American women were _____ the right to vote until 1920 after many years of hard struggle. A. ignored B. neglected C. refused D. denied ...

4. （ ）'Four runners run at ______ time. The judges will ______ each of them. A. a,time B. one, time C. a, make time D. one,make time ...