听力原文：M: Do you know where Mr. Brown is？W: He's in with the manager.M: I wonder what th
听力原文：M: Do you know where Mr. Brown is？
W: He's in with the manager.
M: I wonder what they are talking about.
W: The next stage of the project, I think.
Who are the two speakers？
A．Mr. Brown' s colleagues.
B．Mr. Brown' s workers.
C．Mr. Brown' s students.