阅读下列短文，从每题所给的四个选项(A、B、C和D)中,选出最佳选项。
A
Popular music in America is what every student likes. Students carry small radios with earphones and listen to music before class, after class, and at lunch. Students with cars buy large speakers and play the music loudly as they drive on the street.
Adult drivers listen to music on the car radio as they drive to work. They also listen to the news about sports, the weather, and the life of American people. Most of the radio programs are music.
Pop or popular music singers make much money. They make a CD or tape which radio stations use in many places. Once the popular singer is heard all over the country, young people buy his or her tapes. Some of the money from these tapes goes to the singer. Wherever the singer goes, all the young people want to meet him or her. Now the singer has become a national star.
There are other kinds of music that are important to Americans. One is called folk music. It tells stories about the common life of Americans. Another is called western or country music. This is started by cowboys who would sing at night to the cows they were watching.
21. This passage mainly talks about ____.
A. American music B. American popular music
C. three sorts of music D. popular music singers
22. The first three paragraphs mainly tell us ____.
A. that Americans dislike popular music
B. that popular music is an important kind of music in America
C. how to become an international star as a pop singer in America
D. popular music in America is what every teacher like
23. In the USA, as a pop singer, if you want to become a national star, you’ll have to ____.
A. earn a lot of money B. make a radio stations buy your CDs or tapes
C. make many CDs or tapes D. make young people love you and what you sing
