A. saving worker's money
B. making workers more attractive
C. improving worker's feeling
D. making workers happier
A. African Elephants and the Ivory Trade
B. A Bid to Save the Elephant
C. The Poachers
D. Elephants in Danger
A. decrease
B. enlarge
C. weaken
D. eliminate
A. They gave up poaching.
B. They killed more elephants to get the same quantity of ivory.
C. To them, game is over.
D. They realized it was illegal to slaughter elephants.