题目内容：

从方框里选择适当的句子完成对话，其中有两项是多余的。

A: Good morning, madam . What can I do for you?

B:  1. But it doesn't work. Can I return it for a refund(退款)?

A: Let me have a look at the radio. Oh, there is really something wrong with it. 2.

B: That's a good idea.  3.

A: How about this one? It's made in Japan, but it's five dollars more expensive than that one.

B: I see.  4.

A: One year. 

B: 5.

A: Sure.

B: Well, it's very nice, and I'll take it. Here is the money.

 

A. I’d like to buy a radio.

B. Could I try it out?

C. How long is the warranty period(保修期) of the radio?

D. May I change them?

E. I bought this radio here yesterday morning.

F. Please show me some others.

G. But I think you’d better change it for another one .