Please remain until the aircraft has come to a complete stopA. seatingB. seatedC. to sea

问题补充：

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

A. seating

B. seated

C. to seat

D. seat

答案：

A. seating

(答案→)B. seated

C. to seat

D. seat

解析：考查非谓语动词。remain 是连系动词，后须跟形容词作表语，而且须动词过去分词的形容词。