Please remain until the plane has come to a complete stop.A. to seatB. to be seatedC. sea

问题补充：

Please remain until the plane has come to a complete stop.

A. to seat

B. to be seated

C. seating

D. seated

答案：

A. to seat

B. to be seated

C. seating

(答案→)D. seated

解析：考查形容词做表语。Seated是动词seat转换而来的形容词，与remain连用形成系表结构。句意：请坐好直到飞机完全停下来。