After the terrorist attack last month, anyone at the airport       heavy bags, bottles of liquid, or whatever, could be stopped and questioned by the police.
#103631
A
seen carrying
B
seen carry
C
seen to carry
D
seen to be carrying
推荐题目
The volleyball match will be put off if it___. 
#104262
A
will rain 
B
rains 
C
rained 
D
is rained
--- _____ the change of the schedule ______?--- Oh, God! I forgot all about it. I’ll do it right now.
#100466
A
Has, been announced
B
Was, announced
C
Has, announced
D
Had, been announced