(2013·皖南八校联考) a lady of her necklace, the young man was arrested on the spot by a policeman.
A. Having caught robbing
B. Caught robbing
C. Being caught robbing
D. Catch robbing
网友回答
A. Having caught robbing
(答案→)B. Caught robbing
C. Being caught robbing
D. Catch robbing
解析：选B 考查非谓语动词作状语。句意：那个年轻人在抢一位女士的项链时被发现了，警察当场逮捕了他。catch sb doing sth.表示“发现某人正在做某事”，catch与the young man为动宾关系且表示完成，故用过去分词。