A、$3.99. B、$5.50. C、$6.99. D、$9.50. A细节题。男士说他的朋友花了$3．99买了一块电池。A项正确。

M: Excuse me. My watch stopped running and I’m not sure what’s wrong with it.
W: Well, let me look at it.
M: OK. It’s a new watch. I’ve only had it for about a year.
W: Hmm. It seems that it just needs a new battery. They only last about a year, you know.
M: Oh, that’s a relief. I was hoping it wasn’t broken or something. In fact, last week I got some water on it and I was afraid that the water might have ruined it. How much is a new battery?
W: It’s six ninety-nine plus tax.
M: Oh dear, that seems like a lot. I thought my friend said she paid about three ninety-nine for a battery.
W: Well, she may have. But we’re 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.
M: Well, I guess you get what you pay for. I’ll get my battery here. How long will it take to put it in?
W: Usually I can do it right away, but right now I’m far away 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 p.m.?
M: Oh dear. I’m afraid I can’t. I need to get back and I have to work this evening. So I couldn’t pick it up by five. And I have to have it by tomorrow.
W: Well, then maybe I can just squeeze it in now. It’ll only take a few minutes. Can you wait?
M: OK. I’d really appreciate that. Sure, I’ll wait.
W: OK. Just sit down over there. I’ll have it fixed in a few minutes.
Questions 9 to 11 are based on the conversation you have just heard.
9. What is the problem with the man’s watch?
10. How much did the man’s friend pay for a battery?
11. What is special about the shop’s service?