问题
选择题
The pilot asked all the passengers on board to remain _____ as the plane was landing. [ ]
A. seat
B. seating
C. seated
D. to be seating
答案
答案：C
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The pilot asked all the passengers on board to remain _____ as the plane was landing. [ ]
A. seat
B. seating
C. seated
D. to be seating
答案：C