完形填空

There's a zoo in our city. My parents often take me there1weekends. I like animals. I have a lot of2animals in my room. In the3I can see tigers, elephants, monkeys, pandas, bears, snakes and many other4. Some animals are friendly, but some are not.

Tigers, bears and snakes are5. That's why they have to stay in6. But I don't think it's good for animals. They should be free. The animals in cages can't be7.

I think the most interesting animals in the zoo are the dolphins. I like8them swim and jump. They swim so fast and jump so high. They can play with a ball. They can9up and walk on water! They're very10to people. If you fall into water and can't swim, they may come to help you.