28.After negotiation， the two countries ____ the terms of peace.
A. agreed with
B. agreed in
C. agreed to
D. agreed on
29. After performing a successful operation， the doctor at last pulled the patient ____.
A. back
B. in
C. up
D. through
30. After reading these books， he was _____ to the Darwinian theory of evolution.
A. changed
B. converted
C. transferred
D. adjusted
31. Airplane and television are among the ____ of science.
A. masks
B. martyrs
C. marvels
D. marrow
32. All experts agree that the most important consideration with diet drugs is carefully ____ the risks and benefits.
A. weighing
B. valuing
C. evaluating
D. distinguishing
33. Although Asian countries are generally more ____ in social customs than Western countries， there have been several notable examples of women leaders in both China and India.
A. conservative
B. confidential
C. comprehensible
D. consistent
34. Although he is very rich， his undutiful children are the ____ of his life.
A. torch
B. torment
C. topic
D. topper