单项选择题
A.No, no. I can help it myself. B.Thank you. C.Sorry, you can't. D.No, I don't need you.
A.Excuse me, you can't B.I'm afraid you can't C.I can't agree with you D.Yes, thank you
A.That's very nice of you B.No, you don't have to C.Yes, please D.With pleasure