单项选择题
A.It’s worth mentioning. B.It’s not a big thing to do. C.It’s no big deal. D.It’s not worth talking about.
A.OK. With great pleasure. B.I’m sorry to hear that. C.Oh, really That’s OK. D.Don’t worry about it.
A.Did I say it right B.Didn’t I tell you C.What did I say D.Is what I said right