What does the woman mean? [br] [originaltext] 21. M: Can I have the earphone

21.
M: Can I have the earphone changed? It’s not working.
W: Let me check it.
   22.
W: I think the story is interesting, but Mary thinks it dull. Can you tell us how you like it?
M: I’m sorry I know nothing about your story.
   23.
W: How arc you, Brandon?
M: Oh, dear, my back’ s killing me.
   24.
W: But it’ s only for a few minutes. I’ m waiting for a friend.
M: This is a taxi park. You can park in the car park. It’ s just around the corner.
   25.
M: I’ll take two shirts.
W: Forty yuan, please.