Ladies and gentlemen please remain until the plane has come to a complete stop.A. seatedB

问题补充：

Ladies and gentlemen, please remain until the plane has come to a complete stop.

A. seated

B. seating

C. to seat

D. seat

答案：

解析：考查非谓语动词。句意：先生们女士们，直到飞机完全停住时，请保持不动。过去分词表示句子主语被动的动作，人们是被就坐的对象，故选A。