(2013·北京东城区高三教学统一检测)According to the new law, the people found “harmful” advertisements on the streets will be punished strictly.
A. put up
B. to put up
C. putting up
D. having put up
网友回答
A. put up
B. to put up
(答案→)C. putting up
D. having put up
解析：C 考查非谓语动词。句意：根据这项新法规，被发现在街上张贴“有害”广告的人将会被严厉惩罚。putting up为现在分词短语，在这里作宾语补足语，表示正在发生的动作。