单项选择题
A.No, I don't know. B.Sure. What is it? C.Don't mention it. D.That's it
A.I'd like that B.Sure, go ahead C.Sorry, but I have to meet my uncle D.It's none of my business
A.No, I already have plans. B.I'd love to, but I'm busy tonight. C.No, I really don't like being with you. D.I'm ill, so I shouldn't go out.