题目内容：

A few years ago, David had the idea of selling CDs over the Internet. He started his work from his home. Now he sells over 500,000 CDs a year and has made himself into a millionaire(百万富翁), at the age of 24.

“I could see that this was the future of shopping,” says David. “Why should you pay $15 for a CD and spend the time and the money going into the shop? You know sometimes you have to find a place for your car too. You can have the same CD for half of the price by clicking on your computer. And we can find any CD you want and bring it to your door in 24 hours!”

David said this is the only beginning, “One day we’ll do our shopping over the Internet: it’s easier, quicker and cheaper. Shops and supermarkets will be the past.”

1.How has he become a millionaire?

A. By making new supermarkets.

B. By making advertisements.

C. By selling ideas to others.

D. By selling CDs on the Internet.

2.If you pay $15 for a CD in the shop, how much should you pay for it on the Internet?

A. $15. B. $12. C. $7.5. D. $30.

3.By shopping on the Internet, you won’t ________.

A. spend any time or money B. drive your car any more

C. click on your computer D. get into the shop by yourself

4.What can we learn from the passage?

A. More than half of the people like to shop on the Internet. 

B. Shops and supermarkets will be the past in the future.

C. Some people don’t like to go shopping over the Internet.

D. It’s easier, quicker and more expensive to do our shopping over the net.