A、About $3.99 plus tax. B、About $6.99 plus tax. C、About $3.99 excluding tax. D、About $6.99 excluding tax. A选项表明，本题与金额有关，听音时应留意与金

W: Excuse me. My watch stopped running and I’m not sure what’s wrong with it.
M: Well, let me have a look at it.
W: OK. It’s a new watch. I’ve only had it for about a year.
M: Hmm, it seems that it just needs a new battery.
W: Oh. That’s a relief. I was hoping it wouldn’t be broken or something. How much is a new battery?
M: It’s $6.99 plus tax for a battery.
W: Oh dear, that seems like a lot. My friend said she paid about $3.99 plus tax for a battery.
M: Well, she may have. But we are a watch repair shop and we install your battery and then guarantee it for a year. If you have the watch cleaned here, we guarantee it for an additional three months.
W: Well, I guess you get what you pay for. I’ll get my battery here. How long will it take to put it in?
M: Usually I can do it right away, but right now I’m way behind in my repair of a large shipment of watches. They all need to be fixed by this afternoon. Can you leave your watch here until about 5:00 p.m.?
W: Oh dear, I’m afraid I can’t. I need to get back to work and I have to work this evening, so I couldn’t pick it up by five. And I have to have it by tomorrow.
M: Well, then maybe I can just squeeze it in now. It’ll only take a few minutes. Can you wait?
W: Oh, I’d really appreciate that. Sure, I’ll wait.
M: OK. Just sit down over here. I’ll have it fixed in a few minutes.
W: Thanks a lot.
Questions 12 to 15 are based on the conversation you have just heard.
12. What is the problem with the woman’s watch?
13. How much did the woman’s friend pay for a battery?
14. What is special about the man’s shop?
15. What can be inferred from the conversation?