The officer gave orders that anyone a gun should be reported to the police station.A. saw

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。