A、His uncle. B、Melissa. C、His aunt. D、Not clear. C对话一开始就说皮特的阿姨留给他一笔财产。故选C。

W: I hear (12) Pete’s aunt left him everything.
M: Absolutely right, he inherited a fortune out of the blue.
W: He knew nothing about it then. How exciting!
M: You bet! When he heard about it, he was over the moon.
W: So what’s his problem now?
M: Well, (13) he’s in deep water because he spent the whole lot in a month and then his girlfriend walked out on him.
W: You’re kidding. I thought he’d asked her to marry him?
M: He was going to ask her, and then he got cold feet.
W: So what next?
M: Looks like he’ll have to pull his socks up and get a job.
W: And a new girlfriend. (15) What about that girl he used to work with? Mm- Miranda, Marilyn—no, that’s not it, her name’s on the tip of my tongue.
M: You mean Melissa. Whatever you do, don’t mention Melissa! (14) She told him he was a waste of space, money or no money.
W: Oh, dear, I’m glad you told me, otherwise I might have put my foot in it.
12. Who left Pete a fortune?
13. Why did Pete’s girlfriend leave him?
14. What’s Melissa’s view about Pete?
15. What kind of relationship do the two speakers have with Pete?