Please remain_____until the plane has come to a complete stop.

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问题 Please remain_____until the plane has come to a complete stop.

选项 A、to seal
B、to be seated
C、seating
D、seated

答案D

解析 句意为:“在飞机完全停下来前要坐在自己的座位上”。seat是及物动词,表示“坐下”时,常用be seated。在这里,remain也是系动词,后接动词的过去分词形式,表示保持“坐”的状态。
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