(2013·开封高三第一次模考)—Did Ann fail in English?
—She .Don't you notice that she looks depressed?
A. might
B. must
C. may have
D. could have
网友回答
A. might
B. must
(答案→)C. may have
D. could have
解析:C 考查情态动词。句意:“安英语考试没及格吗?”“可能是。你没看到她看上去很沮丧吗?”may意为“可能,也许”,常用在肯定句中,表示推测。再根据句意可知空格处表示对已发生事情的推测,应用情态动词的完成式,其省略形式要保留have,故C项正确。