問題詳情：
根據下面提供的對話情景，在每個空白處填入一個適當的句子，使其意義連貫、完整。
A: Good afternoon, Sir. 1 .
B: I want to buy a pair of shoes. Could you show me some?
A: Well. 2 .
B: Size 40.
A: OK. Here you are.
B: Thank you. Do you have any other colours?
A: 3 .
B: That’s all right. 4 .
A: One hundred and twenty yuan.
B: 5 . Here is the money.
【回答】
1. Can I help you? / What can I do for you?
2. What size do you wear?
3. Sorry. We don’t have any.
4. How much is it?
5. I’ll take it.
知識點：交際
題型：補全對話
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