— I need to speak to Mr.Tucker.This is a very urgent matter.— () . A.Just a minute.Sorry, it is not ready yet.B.what's the problem?C.please, I will be waiting.

— I need to speak to Mr.Tucker.This is a very urgent matter.— () .

A.Just a minute.Sorry, it is not ready yet.

B.what's the problem?

C.please, I will be waiting.

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