题目内容：

    In Canada you can find dogs, cats, birds, etc. in almost every family. These are their pets. People love these pets and have them as their good friends. Before they keep them in their houses, they take them to animal hospitals to give them injections so that they won’t carry disease. They have special animal food stores, though they can get animal food in almost every store. Some people spend about two hundred Canadian dollars a month on animal food. When you visit people’s homes, they would be very glad to show you their pets and they are very proud of them. You will also find that almost every family has a bird feeder in their garden. All kinds of birds are welcomed to come and have a good meal. They are free to come and go and nobody is allowed to kill any animals in Canada. They have a law against killing wild animals. If you kill an animal, you will be punished. If an animal happened to get run over by a car, people would be very sad about it.

People in Canada have many reasons to like animals. One of them might be：Their family tie is not as close as ours. When children grow up, they leave their parents and start their own life. Then the old will feel lonely. But pets can solve this problem. They can be good friends and never leave them alone.

1.They give their pets injections before keeping them at their houses because            .

A.the pets are sick

B.the pets aren’t healthy

C.they want to stop them from carrying disease

D.they want to stop them from hurting people

2.The phrase “get run over” means            .

A.be hit B.run to

C.be driven D.be looked over

3.Children leave their parents when they grow up because            .

A.they don’t love their parents any more

B.they wouldn’t depend on (依赖) their parents any-more

C.their parents’ houses are not large enough

D.they can only find jobs far from their parents