1 I would like to ask you a question.
2 Yes. Please do.
3 Would you care to answer my question on the warranty?
4 I do not know whether you care to answer right away.
5 I have to raise some issues which may be embarrassing.
6 Sorry， but could you kindly repeat what you just said?
7 It would help if you could try to speak a little slower.
8 I will try.
9 Could you please explain the premises of your argument in more detail?
10 It will help me understand the point you are trying to make.