问题
选择题
(江苏省南通市2009期末调研)－Mary, how did your Math test go?
－I had thought I _________, but in fact I came in the top 10% in my class.
A．should have failed
B．couldn’t have failed
C．might have failed
D．shouldn’t have failed
答案
答案：D
考察情态动词的用法。Might have done表示对过去发生的事情的猜测或担心，意思是“或许是……而事实上不一定如此”。