Many people like animals. Now a lot of people keep animals as pets（宠物）. Usually people like to keep dogs, cats, fish and other animals. Many young people keep animals because they think these animals are interesting. Some old people keep pets because they don’t live with their children.

Molly lives in No.25 Garden Street. He is a doctor(医生), but he helps dogs. People usually call him The Dog Doctor. When their dogs get sick(生病), they call him on the telephone. He goes to the people’s houses and helps them. He gives the dogs the right medicine(药物). Wherever(无论) he goes, he is always welcome.

51. What kind of animals do people keep?

　　　 A. Dogs.　　　　　　　 B. Cats.　　　　　　　　　　　 C. Fish.　　　　　　　　 D. All of the above.

52. Why do old people keep pets?

　　　 A. Because they don’t live with their sons and daughters.

　　　 B. Because they don’t have children.

　　　 C. Because they think animals are interesting.

　　　 D. Because they like animals are interesting.

53. Does Molly help animals?

　　　 A. Yes, he is.　 B. Yes, he does.　 C. No, he isn’t.　　 D. No, he doesn’t.

54. What is the best title?

　　　 A. A Dog Doctor.　　　　　　　　　　　　　　　 B. A new Pet Store.

　　　 C. Pets and doctors.　　　　　　　　　　　　　　　　 D. An interesting animal.

55. Where does Molly live?

　　　 A. In a hospital.　　　　　　　　　　　　　　　　　　　　 B. In a city.

　　　 C. In a garden.　　　　　　　　　　　　　　　　　　　　 D. In No. 25 Garden Street.

My friend, Victor, is a zoo keeper in the National Zoo. His work is very interesting but it is hard. Sometimes it is dangerous, too. Every morning the zoo keepers have to get up at five to prepare the food for the animals. Each kind of animal is given special food. For example, the lions must be given meat; the deer must be given grass and leaves; and the parrots must be given fruit and nuts. Sometimes some animals won't let the others eat their food. If this happens,  each of them must be fed separately(分离地) .
Every morning each cage must be washed by the zoo keepers. This can be dangerous, especially with lions and tigers. To make the work easier, the animals are locked in the sleeping compartments (隔间) while the cages are being washed. When the animals are sick, the zoo keepers must look after them. Each sick animal is kept in a separate cage and given medicine. Sometimes they must be given injections. It is not easy to inject（打针） a sick lion!
All the keepers live near the zoo. Each of them has a small house. There he lives with his family. They do not have holidays on Sundays and public holidays. Instead, each of them has a day off during the week. Each keeper has a holiday on a different day from that of the other keepers.
The most important job of the keepers is to look after the safety of the visitors. People must be prevented from doing dangerous things. Many people have been injured because they did careless things, like putting their hands into the lion's cage.
【小题1】What kind of food must be given to the animals like tigers, lions and bears?