问题
选择题
—Jenny，how did your math exam go?
—I thought I ________，but in fact I came in the top 10% in the class.
A．might have failed
B．couldn’t have failed
C．should have failed
D．mustn’t have failed
答案
答案：A
这题考查情态动词的虚拟语气，might have done“本来会做…却没做”，句意是：--Jenny，你数学考试怎样，我还以为会不及格，但事实上我是班级前10%。选A。