单选题Pleaseremain______untiltheplanehas

单选题 Please remain ______ until the plane has come to a complete stop.A.to seatB.to be seatedC.seatingD.seated

D解析句意：在飞机停稳之前，请坐在原位。seat作为及物动词而空后无宾语，故排除A、C两项。系动词。remain后可以跟形容词、v--ing形式和v--ed形式，表示仍保持某种状态。例如：to remain silent/standing/seated. remain后跟动词不定式表示“仍需去做（说、处理）”含有将来的意味。例如：It remains to be seen (=it will only be known later) whether you are right.你说得对不对还有待证实。

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