Seat backs and tray tables should be returned tothe（）position.
A.right
B.correct
C.upright
D.good
正確答案：upright
題目：Seat backs and tray tables should be returned tothe（）position.
關鍵字：智慧樹
相關試題
1.We will be（）the cabin lights for landing.
2.We sincerely apologize for the delay due to（）
3.I’msorrytoinformyouthatwewillbedelayedforabout30minutesdueto（）.
4.Please remain seated while waiting for（）at Airport.Thank you for your cooperation.
5.We must keep（）.Please take your seat according to your seatThank you
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