Singapore is a beautiful country. Singapore Zoo is big and popular① around the world. It opened in 1973. Now it is big and beautiful. About 300 different kinds of animals are living there.  All the animals eat and sleep in some forests， not cages②. Its easy to get around the zoo all the time. Children can ride a small horse in the zoo. People can walk or take a forest bus to see animals. You can see Animal Friends Show， Star Animal， and Elephants at Work and Play Show. Some elephants dance and play water in front of people. Monkeys play in the trees. They sometimes walk to people and  want to get some food from them.
　　Singapore Zoo doesnt have any fences③. Many animals likes walking out at night. People can take a train to see them. The zoo is a good place for children to know about animals. Many children come here every year.
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　　1. Singapore Zoo has a history of ____ years since 2021.
　　A. 38      B. 37    C. 48      D. 49
　　2. How many kinds of animals are there in Singapore Zoo？
　　A. 300.    B. 2，800.      C. 3，000.    D. 4，000.
　　3. All the animals in Singapore Zoo arent living in the ____.
　　A. cages        B. river  C. fence            D. forests
　　4. What animals like asking people for food？
　　A. Birds.    B. Elephants.    C. Lions.      D. Monkeys.
　　5. Which of the following is right？
　　A. Children can see animals for free in Singapore zoo.
　　B. People can visit animals by train at night in Singapore zoo.
　　C. Its scary for children to see many animals in the forest.
　　D. Singapore zoo doesnt have any fences.