A) 100 dollars. C) 80 dollars.
B) 90 dollars. D) 110 dollars.

A. our system of education is too examination-oriented
B. we should get rid of examinations in our education
C. educations still play an important role in our present education and work
D. examinations should be criticized in education and work

A. to become famous at that time
B. to find navigation line from the Atlantic to the Pacific
C. to make a voyage to Asia
D. to carry men to the Seville