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    Zoos are places 1. animals are kept. There are some reasons 2. keeping animals in zoos.

    Firstly, zoos are entertaining and interesting places of children. Most children like to see animals in zoos. Zoos also offer people 3. (live) in big cities a chance of getting close to nature.

    Secondly, it is easier for scientists to research animals’ lives when they are kept in zoos than they are in forests. Scientists can study animals’ 4. (relate), their life cycles, or their habits to learn how to breed animals, 5. can reduce animal 6. (extinct).

    Furthermore, the risk of dying out of some 7. (endanger) animals is reduced because they are kept in safety.

    8. , zoos also cause some problems for animals, such as restrictions on their freedom. They also lose their “wild” character. For example, tigers might lose their 9. (hunt) skills. Besides, zoos cost a lot of money for land, animals’ food and labors. This may charge 10. (expense) for people who want to visit zoos.

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