问题
选择题
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.
A．seen carrying
B．seen carry
C．seen to carry
D．seen to be carrying
答案
答案：A
考察非谓语动词.句意:上个月恐怖分子袭击后,在机场被发现的任何正带着大箱子/瓶装液体还是其他什么东西的,都要被警方停下来进行盘问.过去分词表示主语被动的发生过的动作,和句子主语是动宾关系.现在分词表示正在进行的伴随性动作,和句子主语是主谓关系.结合语境可知选A为最佳答案.