Anyone trying to take knives on board flights would be caught by the police. A. findsB.

问题补充：

Anyone trying to take knives on board flights would be caught by the police.

A. finds

B. being found

C. found

D. will find

答案：

A. finds

B. being found

(答案→)C. found

D. will find

解析：考查非谓语动词。A、D两项构成谓语，过去分词表被动，为find sb. doing sth.的被动式。句意：被发现试图带刀具登机的任何人将会被警察抓获。故C正确。