参考答案：A

解析：[听力原文]13-16
W: What can I do for you, sir
M: I’m looking for a jacket for my son.
W: Come with me, please. Here are jackets for boys.
M: The black one is nice. How much is it
W: Twenty five pounds.
M. Oh, I’m afraid it’s too expensive.
W: What about the blue one over there It looks nice, too. And it’s cheaper.
M: But it’s a bit too small. Have you a bigger size
W: Sorry, we haven’t. But we’ll get some soon. Will you come next week
M: All right. I’ll come again.