At an international conference, five representatives from four countries were arranged to sit at a round table. In order to enable them to talk freely, they learned the following in advance: A was Chinese and English was spoken; B was German, He also speaks Chinese; C is English and French; Ding is Japanese and French; E is Japanese and German. How do I arrange it ?? ['Meprofen.', 'Metoprene.', 'Propylene.', 'Mebuprene.']