What didn’ t the man know before he comes to buy the book?

Questions 19 to 22 are based on a conversation between two friends.
M: Hey, guess what? My company wants me to stay in New York for another half year.
W: That’s good news!
M: Well, it’s good news and bad news.
W: Let me hear the bad news first.
M: My wife is involved in an important project right now in her company, so she can’t come to stay with me.
W: Ah, that is the bad news.
M: The good news is that my company wants me to move out of my hotel and get an apartment. They figure it’ll probably save money in the long run.
W: Good deal. Your place is too small and you’re always complaining about the noisy environment.
M: Yes, but now I have to start looking for a new place.
W: Hmm. If it’s just for half a year, you’d better sublet.
M: What’s that?
W: It means renting a place from people who are themselves renting from others. Usually it’s because they are going away to another city or country and don’t live in the place for a short period. One thing good is that you get a place that is already furnished. This saves your money. You don’t have to buy furniture.