【题目】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
在线课程【答案】A
【解析】
考查非谓语动词。动词不定式短语作原因状语。句意：那位老大爷每天晚上坐在电视机前，非常开心地观看即将上映的任何节目。“happy ____anything that happened to be on.”作目的状语。