20.She ought to stop work；she has a headache because she ______ too long. A. has been reading B. had read C. is reading D. read ...

14.What he said just now had little to do with the question _______ discussion. A. on B. in C. under D. at ...

8.Mike＇s uncle insists ______ in this hotel. A. staying not B. not to stay C. that he would not stay D. that he not stay ...

2.I don＇t mind ______ the decision as long as it is not too late. A. you to delay making B. your delaying making C. your delaying to make D. you delay to make ...

16._______, a man who expresses himself effectively is sure to succeed more rapidly than a man whose command of language is poor. A. Other things being equal B. Were other things equal C. To be equal to other things D. Oth...

10.Does everyone on earth have an equal right _______ an equal share of its resources A. by B. at C. to D. over ...

18.Once environmental damage _______, it takes many years for the system to recover. A. has done B. is to do C. does D. is done ...

12.Your hair wants _______. You＇d better have it done tomorrow. A. cut B. to cut C. cutting D. being cut ...

6.The pressure _______ causes Americans to be energetic, but it also puts them under a constant emotional strain. A. to compete B. competing C. to be competed D. haveing competed ...

20.We do not have a _______ school in our institute. The highest degree we provide for the students is a B. A. and a B. S. A. continue B. bay C. assistance D. graduate ...