Who are these people rushing by you on the street? More than 250 million people now call America" home" , but most of them can trace their families back to other parts of the world. If you, look at the names on shop windows, you will see that Americans come from many different lands. The idea that these people, who once were strangers to the United States，have lost the customs and cultures of their original countries and have become "Americans"is really not true. In fact, what exists in America is - more often a kind of “ side - by - side" living in which groups of people from other countries often have kept many of their own customs and habits. They join the general American society only in certain areas of their lives such as in schools，business，and sports一but they keep many of their own native customs and manners socially and at home. This “ side - by - side" living has both advantages and disadvantages. Sometimes it may cause disagreements to develop between groups whose ways of life are very different from one another. However, there are also great advantages that come from the variety of cultures brought by settlers from other lands. There is great freedom of choice among ideas ’ dress, food, and social customs in America. Everyone can find some part of his or her own familiar world in the United States, in churches, music, food, national groups, or newspaper.
More than 250 million people call America ”home" because    .

A．they have their houses there

B．they settle there now

C．they want to make their home there

D．they like that land very much

Side - by - side living style means

A．to make friends with native people

B．to keep their own customs while sharing American ones in certain areas

C．that the groups of people live nearby

D．that they get closer to American society

According to the passage, people in the USA

A．share American customs and cultures

B．live in a kind of side - by - side society

C．keep their own customs and habits firmly

D．make no choice to accept American customs

Which of the following statements is TRUE?

A．They always stick to their own customs and habits.

B．Side - by - side living style is not suitable.

C．They face the society they are not familiar with.

D．The advantages coming from the variety of cultures make life in America colorful.

Which of the following is the best title for the passage?

A．Advantages and Disadvantages

B．Different Customs and Habits

C．Home for the People

D．Side - by - Side Living Style in America