根据短文内容选择答案完成句子。
Did you know that there are only 50 blue whales in the world now? Did you know that we can no longer see any South China Tigers on the earth? Did you know that thousands of animals are disappearing?
The tiger is one of the strongest and most beautiful animals in the world. Before, tigers could be found in Russia, India and East Asia. But now there are not more than five thousand tigers in the world. People kill tigers for their skins and use their bodies for medicine.
African elephants are the biggest animals on land. They live in family groups. They are strong and clever. But they are dying out too. People in Africa cut down the trees and the elephants have no place to live. Water pollution brings problems to the elephants too. Some people kill elephants for their tusks. They sell elephant tusks for money. No trading (交易), no killing. Let’s work together and try our best to save the animals in danger.
1．_______ are disappearing. (
)
| A．Tigers and African elephants | B．South China Tigers and blue whales | C．Both A and B |
2．Tigers could be found in _______. (
)
| A．South Africa | B．Australia | C．Russia, India and East Asia |
3．There are _______ tigers in the world. (
)
| A．more than 5,000 | B．less than 5,000 | C．less than 500 |
4．African elephants are in danger because _______. (
)
| A．people cut down the trees | B．air pollution brings problems to them | C．people kill elephants for their skins |
5．We should work together by _______ to save the animals in danger. (
)
| A．cutting down the trees | B．polluting the oceans | C．never buying things made from animals |
pollute (看图并根据所给词写句子) 
made from, in danger (根据图片内容，用所给单词/词组写一句话)
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