A、To boost book sales. B、To encourage publishers to publish e-books. C、To advertise their machine. D、In order to advertise their

W: Good evening, Mr. Brown, and welcome to the program.
M: Thank you!
W: I wonder if you could tell the listeners more about the work you do.
M: Certainly.
W: Mr. Brown, I gather that you work for a company developing software for reading electronic books?
M: That is so.
W: Do you think there is much future in that?
M: Well, people buy music online ― so why not books？
W: You have to read electronic books on a machine, don’t you?
M: That is so, although of course you might be able to print them out on a printer.
W: So why should people read a book on an expensive machine, when they can buy a cheap copy and carry it around with them and read it whenever they like?
M: That is an interesting point. People need time to become aware of the value of e-books.
W: Is it true that at the Frankfurt Book Fair, in 2000, there was a prize for the best books published in electronic form?
M: Yes, that is true. The prize was worth $100 000.
W: Who put up the money for the prize?
M: Err, software companies such as Microsoft and Adobe.
W: I suppose they are trying to encourage publishers to get the e-book business off the ground.
M: That’s probably true.
Questions 19 to 22 are based on the conversation you have just heard.
19. Where is the conversation taking place?
20. What is Mr. Brown’s attitude to electronic books?
21. What is the woman’s attitude to electronic books?
22. Why did the software companies put up the money for the prize?