A."Whoisspeaking?" B."Whoiscalling?" C."MayIaskwhoiscalling?" D."Whoareyou?"
A."我該付多少錢?" B."我該做什么?" C."我做了多少工作???" D."我說完了嗎?"
A."Sorry." B."Pardon?" C."Allright." D."GoaheaD."