与你的同桌讨论一下，将下列句子补全。然后仿照这些句子相互问答。

　　(1)－________ help you?

　　－I'm looking for a white shirt.

　　(2)－________ do you want?

　　－I want yellow.

　　(3)－Do you like the green one?

　　－No, ________. I like green better.

　　(4)－Is the black one OK?

　　－No, it's ________. I want a cheap one.

　　(5)－________ is the sweater?

　　－It's 50 dollars.

　　(6)－I'll take it. Here's the money.

　　－________ ________ ________.

　　(7)－What ________ clothes do you like to wear?

　　－I like to wear my school uniform.

　　(8)－Is this pair of shoes big for you?

　　－Yes, too big. I want ________ ________ ________.

补全对话

　　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. But 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: Thanks. Here is the change.

　　B: Thank you.

　　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 chang them?

　　E．I bought this radio here yesterday morning.

　　F．Please show me some others.

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

补全对话。

　　A: What can I do for you?

B．Yes, please. 1．

　　A: 2．

　　B: Black.

　　A: Here you are.

B．3．

　　A: $80.

　　B: It's too expensive. 4． ?

　　A: Yes. This pair is only $20.

　　B: OK! I'll take it. Here's the money.

　　A: Thanks.

　　B: 5．

[　　]

A．Do you have cheap ones

B．You're welcome

C．I want a pair of shoes

D．What color do you want

E. How much is it

F. This pair is too big