问题
选择题
Ladies and gentlemen, please remain _____ until the plane has come to a complete stop. [ ]
A. seated
B. seating
C. to seat
D. seat
答案
答案：A
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Ladies and gentlemen, please remain _____ until the plane has come to a complete stop. [ ]
A. seated
B. seating
C. to seat
D. seat
答案：A