Please remain ___________ until the aircraft has come to a complete stop.
#96306
A
seating
B
seated
C
to seat
D
seat
推荐题目
She couldn’t decide which restaurant _______. 
#98798
A
to have lunch
B
to eat
C
to eat at
D
eating at
They told me that the museum was well worth        .
#95292
A
visiting
B
being visited
C
to visit
D
to be visited