根据对话内容， 从对话后的选项中选出能填入空白处的最佳选项。 选项中有两项为多余选项．

— 　1　

—No． But I can spare some time tomorrow．

— 　2　Then let's go to the Industry Exhibition, shall we?

— 　3　

—I was told that a lot of new products are on display there． Now we'll have a chance to see all of them．

— 　4　Oh, Li Xiao is also interested in science and technology． Why not invite him to go with us?

— 　5 　I'll go and make a call to him right now．

1．

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2．

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3．

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4．

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5．

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A． Have you anything to do tomorrow?

B． Will you be free this afternoon?

C． It's very kind of you．

D． That is quite good．

E． I'm sure we'll have a wonderful time there．

F． OK． I think it's a good idea． I'd like to go with you．

G． You are quite right．