题目内容：

Many people like to live in big cities, because there are a lot of interesting things to do and to see there. You can go to different kinds of museums, see plays and films. You can also buy things from all over the world.

But there are serious problems in big cities, too. It is expensive to live there. Every year many people move to the cities to find jobs, to study at good schools and to receive good medical care. But sometimes these people can’t find jobs or good places to live. Also it is hard to keep the cities safe and clean.

Some people enjoy living in big cities. Others do not. Before people move to a big city, they should think about the problems of living there.

小词典：1. serious adj． 严重的 2. medical care医疗保健 3. hard adj． 困难的

根据短文内容，选择最佳答案。

1.In big cities, people can ___________.

A. go to different kinds of museums

B. see plays and films

C. buy things from all over the world

D. A, B and C

2. It is __________ to live in a big city.

A. expensive  B. cheap   C. easy       D. serious

3. Every year many people move to the cities to _____________.

A. find jobs               B. receive good medical care

C. study at good schools    D. A, B and C

4. It is RIGHT for people to move to big cities _____________.

A. with thinking how to move there

B. with thinking of the problems of living there

C. without thinking of the cost of living

D. without thinking of any problems

5.Which of the following is RIGHT?

A. There are many interesting things to do and to see in big cities.

B. In big cities people can easily find good places to live.

C. People can easily find good jobs in big cities.

D. All people like to live in big cities.