From the last paragraph, we can conclude that
A. managers learned management skills from the family playroom.
B. spouses learned negotiation skills from their siblings.
C. studies on siblings are under the way.
D. studies on siblings need thorough investigation.
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The author is ______ when he analyzes the age discrimination issue.
A. pessimistic
B. partial
C. objective
D. doubtful
Adolescents in Victorian times
A. had shown more respect for parents than today.
B. always answered back to deal with the problem.
C. admired the authoritarian attitude of their parents.
D. were too afraid to tell what they really thought.
The discovery of the halftone process in photography in 1881 made it ______ photographs in
A. the possible reproduction
B. possible to reproduce
C. the possibility of reproducing
D. possibly reproduced
A lighthouse is built ______.
A. to light up the harbor
B. to warn people working on the ship
C. to light up the ship
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