听力原文:M: I've been looking all over the office for the overhead projector. Do you know
W: Well, I used it this morning and then Mark needed it. He might have it in the conference room.
M: That' s good to know. I need it for my presentation to the stockholders at 3. Do you think he' II be finished by then?
W: I think so. His meeting started two hours ago and it will be finished any minute. I'll have him bring that to your office when he's done.
What is Mark using that the man needs?
A.A present
B.A marker
C.The conference room
D.The equipment