Conversation 1
A : Excuse me, I think you’ve given me the wrong change.
B : Sorry?
A : I think you’ve made a mistake. I gave you a 50-pound note and you’ve given
me change for 20 pounds.
B : No, I don’t think I did. But just a minute … Uh, yes , sorry. You did give me
a 50-pound note. I’m very sorry. Here’s the right change.
A : Thank you very much.