听力原文：M: Excuse me, are you waiting to buy concert tickets？W: Yes, I am. So are all the

听力原文：M: Excuse me, are you waiting to buy concert tickets？

W: Yes, I am. So are all these people in front of me.

M: Have you been here long？

W: About 45 minutes. I've moved forward a total of about 3 feet in that time.

M: You're kidding!

W: Not at all. There was a couple ahead of me who got so disgusted they finally gave up and left, They said they'd been waiting for more than an hour.

M: Terrific. Does anyone know what's causing the delay？

W: If so, no one's letting us know. It could be that there aren't enough people selling tickets this afternoon. Or maybe their computer's down. I'm sure the concert hasn't been canceled.

M: I just hope they don't run out of tickets before I get up there.

W: That really would be annoying, wouldn't it？

M: I guess I should have come before lunch. Or has it been like this all day？

W: Apparently it has. In fact, before I came. I tried calling to charge my tickets over the phone, just to a void this long wait. But they're not taking phone orders, or checks, or credit cards. It's cash or nothing. And you have to come in person.

M: Well, there are two more hours before the ticket office closes. Tickets to a good concert are worth waiting for. So I think I'll just make myself comfortable.

What are the man and the woman doing？

A．Calling someone.

B．Attending a concert.

C．Waiting in line.

D．Canceling reservation.