题目内容

The pilot asked all the passengers on board to remain ______ as the plane was making a landing.
A.seatedB.seatingC.seatD.to be seating
A
这题考查remain +done结构,过去分词做remain的表语,因为seat是及物动词,表示就坐是seated,句意是:飞行员让所有机上乘客飞机起飞时,要仍然坐着。选A。
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