问题
选择题
— Mary,how did your maths 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
C
考查情态动词的用法。might have done sth.表示对过去发生的事情的猜测或担心，意思是“或许会……”，而事实上不一定如此。