1 It would help if you could try to speak a little slower.
2 Could you please explain the premises of your argument in more detail?
3 It will help me understand the point you are trying to make.
4 We cannot proceed any further without receiving your thoughts with respect to the manner of payment.
5 Actually, my interest was directed more towards what particular markets you foresee for our product.
6 We really need more specific information about your technology.
7 Our project must proceed at a reasonably quick tempo. Surely one month is ample time, isn't it?
8 I will try, but no promises.
9 I could not catch your question. Could you repeat it, please?
10 The following answer is subject to official confirmation.