听力原文：W: Can I help you？M: Oh, I'm just looking, thanks. Well, actually, I'm looking fo

听力原文：W: Can I help you？

M: Oh, I'm just looking, thanks. Well, actually, I'm looking for something for my girlfriend.

W: And what sort of thing are you looking for？

M: I don't really know. A dress？

W: Right. What color does your girlfriend usually wear？

M: Oh, dear…

W: OK, what color are her eyes？

M: Green.

W: Right, purple suits people with green eyes. Now, what size is she？

M: Um, well, sort of, she isn't very big, but she's not particularly small. That'll be medium then.

W: Well, we have this rather nice silk evening dress here…

M: Good, I'll take it. Thank you. How much is it？

W: That's 70 pounds, sir. How would you like to pay？

M: Seventy？ By credit card, please.

W: Fine. If you could just sign…

M: Here you are. Goodbye.

Where probably are the speakers？

A．In a store.

B．In a hotel.

C．In a restaurant.