【题目】Ladies and gentlemen, please remain __________ until the plane has come to a complete stop.
A.seatedB.seatingC.to seatD.seat
在线课程【答案】A
【解析】
考查过去分词作表语。句意：女士们，先生们，请在飞机完全停止前就坐好。remain后可接adj, v-ing, v-ed和to be done 等多种形式做表语，在该题中remain 后接seated作表语，故选A项。