Speaker A: May I have an inquiry (咨询), please? Speaker B: ______A.Never mind. You can a
Speaker A: May I have an inquiry (咨询), please? Speaker B: ______
A.Never mind. You can ask whatever you want.
B.I'd like to know what inquiry it is.
C.I' m sorry. I know little about it.
D.Yes, of course. So far as I know.