4. If we work with a strong will, we can overcome any difficulty, what great it is. A. 错误 B. 正确 ...

19. We do not necessarily grow wiser ________ we grow older. A. as B. than C. that D. because ...

14. Unless ________ to speak, you should remain silent at the conference. A. invited B. inviting C. being invited D. having invited ...

9. Because of the snow the cars couldn't move, ________ could the buses. A. so B. not C. nor D. or ...

9. If it possible, I will help you with your work. A. 错误 B. 正确 ...

19. — Will you go home tomorrow evening? — No, I'm going to a lecture, or at least, I am planning _______. A. it B. that C. to D. on ...

14. She is as _________ as a bee. A. busy B. busier C. the busiest D. more busy ...

9. The population of China is _______ than ________ of any other country in the world. A. larger; the one B. more; that C. larger; that D. more; the one ...

4. She is older than __________. A. any other girl in the group B. any girl in the group C. all girls in the group D. you and me besides the group ...

9. The search for a new vaccine will take priority over all other medical research. A. 错误 B. 正确 ...