20.??Professor Smith has written some short stories, but he is_____known for his plays. A. the best. B. more. C. better. D. the most. ...

15.??The teacher told Bob that if he started working hard right now, he still ___________ of passing the final exam. A. stood chance B. held chance C. stood by chance D. stood a chance ...

8.??I caught a_____of the car before it disappeared around the corner. A. look. B. sight. C. glimpse. D. watch. ...

25.??I think your bedroom needs_____. A. cleane B. C. to clean. D. cleaning. E. being cleane F. ...

20.??In 1950, the place where his mother had been buried was finally discovered, marked only by_____, on a simple stone. A. a 45-number. B. the number 45rd C. the number 45. D. the 45 number. ...

15.??The new office boy seemed smart and ________ when he reported for work. A. attractive B. individual C. energetic D. energy ...

10.??Everybody needs at least _____ shoes in his daily life. A. a piece of B. a cake of C. a herd of D. a pair of ...

5.??Mr. Zhang is very popular_____his students. A. by. B. with. C. to. D. for. ...

20. Mary found that ________ was always the best policy when she got involved in arguments with her husband. A. compose B. congratulate C. compromise D. content ...

10. 48. 在下列中，核质互作型雄性不育系的恢复系的基因型为( )。 A. S(MsMs) B. S(ms ms) C. Ms Ms D. ms ms ...