what do you think of ads?Some people say

what do you think of ads?Some people say
What do you think of ads? Some people say they like them. Others say they don't like them. But our life can't go on without(没有) ads.
You go to a shop. You see many new things. You know about them. Why? You see these things on TV. You learn about them through(通过) ads.
Long ago, men walked up and down the streets and shouted(喊) about things they sold.
　　　Later, people met at one place. Some people came to sell. Other people came to buy.
When people learned about printing(印刷) ,things changed. Soon there were newspapers. Many people read newspapers. They saw many ads in the papers. Later, more people saw and listened to the ads on TV.
21.()think ads are good.
A. Some people B. All people C. No people D. No one
22. When you go to a shop, you will see many
A. newspapers B. new things C. new ads D. friends
23. The text tells us that long ago some people shouted down the street to
A. buy things B. sell things C. play D. have fun
24. People met at one place because
A. they wanted to buy things
B. they wanted to sell things
C. some wanted to buy things, other wanted to sell things
D. they came to the place to make friends
25. You can see and listen to the ads
A. in newspaper B. on TV C. in a book D. in a magazine