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

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：

(答案→)A. seated

B. seating

C. to seat

D. seat

解析：

A。seated在此用作形容词，remain seated意为“坐着不动”。