A. 1969
B. 1975
C. 1979
D. 1989
The first secretary general of UN was__________
A. Dag Hammarskjold
B. Kurt Walheion
C. U Thant
D. Trygve Lie
Senior Observer
Which two primary colors are mixed to make purple color?
A. red and green
B. red and blue
C. red and yellow
D. red and white