问题补充:
The officer gave orders that anyone a gun should be reported to the police station.
A. saw take
B. seen taking
C. seeing take
D. seen taken
答案:
A. saw take
(答案→)B. seen taking
C. seeing take
D. seen taken
解析:考查过去分词做定语结构。本题考查的是固定结构:see sb doing sth看见某人做某事;本句中的anyone与see构成被动关系故使用过去分词,seen taking a gun是修饰名词anyone,句意:官员下令然后一个被看见拿着枪的人都应该向警察报告。故B正确。