问题补充:
Ladies and Gentlemen, please remainuntil the plane has come to a complete stop.
A. seated
B. seating
C. to seat
D. seat
答案:
A. seated
B. seating
C. to seat
D. seat
解析:本题考查非谓语动词。句意:女士们,先生们,请在飞机完全停下来之后,再离开座位。remain 仍然是;保持不变,在这里是一个连系动词。seat:vt.用法:seat oneself;seat people;be/remain seated:保持坐着的状态,seated是由过去分词变来的形容词,作remain的表语,表状态。