Mr. BrownMs White knows French so I have to ask a third person for help.A. Both；and B. Nei

问题补充：

Mr. BrownMs White knows French，so I have to ask a third person for help.

A. Both；and B. Neither；nor C. Either；or

答案：

解析：句意:Brown先生和White女士都不懂法语，所以我不得不向第三个人求助。both…and………和……两者都；neither…nor… 意为：……和……都不；either…or… 或者……或者……。根据句意可知我需要找第三个人帮忙，所以选B。