Mr.Chen:May I ask you a question? Mr.Green:Yes,__________. Mr.Chen:Haven’t we met before? Mr.Green:Yes,we met at the sales conference last year in Beijing. A.do it B.please C.all fight’ D.say it
A.Chen:May B.Green:Yes,__________. Mr.Chen:Haven’t C.Green:Yes,we D. A.do E.please C.all F.say