12. The two dogs started to fight, so we tried to them.
A. split B. separate
C. divide D. distinguish

13. The bossy manger is always finding fault with his .
A. employs B. employers
C. employees D. employments

14. The woman had to to the government for assistance in resisting forced marriage.
A. appeal B. appear
C. appease D. applaud

15. Employment for women are poor at the present time.
A. entrances B. occasions
C. ways D. opportunities

16. Eminent physicists from all over the world to the U.S. to the centennial(一百周年) of A. Einstein's birth.
A. congratulate B. observe
C. celebrate D. participate

17. High interest rates people from borrowing money from the commercial banks.
A. discourage B. decrease
C. disgust D. disturb

18. an oil-pump failure, the moving parts will become over-heated.
A. in case of B. in the case of
C. in case D. on case of

19. If we don't receive any reply by tomorrow morning, I shall have to him on the phone.
A. get to B. get on to
C. get on with D. get through

20. After the successful operation, the patient has taken a turn ..
A. for the moment B. for the present
C. for the better D. for the good