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小博士：仔細(xì)觀察下面的句子，找找看，它們的用法有什么不同呢？試著填寫完下表。

你看看下面的句子正確嗎？不對的請你把它改正。

補(bǔ)全對話閱讀對話，從每題四個(gè)選項(xiàng)中，選出一個(gè)最佳答案完成對話。

A：【1】

B: Yes, please.I need a sweater.

A: What color do you want?

B：Blue.

A：Here you are.

B：How much is it?

A：Twenty dollars.

B：I'll takeit．

A：【2】

B:I also want some socks.

A： 【3】 ．

B: Oh,I like them .How much are they?

A： 【4】 ．

B: Great. I'll take them.

A：Here you are.

B：Thanks very much.

A：【5】 ．

1.A.Thank you. B.How are you?

C. Can l help you? D.Nice to meet you!

2.A.When is it? B.Is that all?

C. Goodbye. D.What about you?

3.A.What color do you want? B.How about these white socks?

C. How much do you need?. D.They are good socks.

4.A.Let's have a look. B.They are yellow and white.

C. They are only 5 dollars. D.They are small.

5.A.Thank you. B.See you.

C. Here you are. D.You are welcome.