单项选择题
A.Oh,ltm sorry B.Oh,excuse me C.No. I don't D.Yes,I have to
A.Yes, just call me A1 B.Yes, you may do that C.Of course not. But just a plain "Al" will do D.OK. Everyone does
A.Sorry. It is not my business. B.So do I. C.I have nothing to say. D.You could go swimming.