1.- Hello, I'm David Chen. Nice to meet you.
B.Nice to meet you too.
2.- Hello, could I speak to Mike please?
A.Who are you?
B.Who is speaking?
3.-May I move your bag a little and take this seat?
A.I don't mind
B.It doesn't matter
C.You do it please
4.- I didn't mean to do that. Please forgive me.
A.Not too bad.
B.That's all right.
C.It's a pleasure.
5.- It's rather cold in here. Do you mind if I close the window?
D.I don't like it.