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题目内容
（大连工业大学-大学英语2）
(单选题) The pilot asked all the passengers on board to remain _____ as the plane was making a landing.(本题3.0分)
A、 seat
B、 seating
C、 seated
D、 to be seating
A、 seat
B、 seating
C、 seated
D、 to be seating
参考答案