. Ladies and gentlemen, please remain ________ until the plane has come to a complete stop. 
#98550
A
seated
B
seating
C
to seat
D
seat
推荐题目
While watching television, ____.
#96009
A
the doorbell rang
B
we heard the doorbell ring
C
there was someone knocking at the door
D
the doorbell was ringing
The woman     there,      in a blue shirt, is Lily’s teacher.
#88369
A
seated ; dressing
B
seating ; dressed
C
sat ; dressed
D
sitting ; dressed