Nobody knows why ______ are disappearing, dolphins are dying and coral is turning white.
（A）carnivores
（B）amphibians
（C）herbivores
（D）reptiles
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- 1The _______ had spent a long time living with monkeys.
- 2Human beings also belong to the _______ species.
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- 4Some animals can overwinter without the ________.
- 5The _______ had spent a long time living with monkeys.
- 6That is ______ behavior and nobody likes it.
