The old man sat in front of the television every evening, happy anything that happened to be on.
A. to watch
B. watching
C. watched
D. to have watched
网友回答
(答案→)A. to watch
B. watching
C. watched
D. to have watched
解析：此处happy to watch anything that happened to be on作sat的目的状语。句意：那位老人每天晚上坐在电视机前，高兴地看要上演的任何节目。
【考点定位】考查非谓语动词的用法。