题目内容

3

A.Hello,is Mr.Brown in?
B.Hello,this is David Smith.May I speak to Mr. Brown?

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4

A. OThank you.
B. Can Ileave a message?

5

A.You are welcome.
B. OGet it.

6

A.Yes,thank you.
B.That's allright.

7

A.Yes,speaking.
B.I'm Mr. Smith.

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