问题
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
B:couldn’t have failed
C:should have failed
D:mustn’t have failed
正确答案是：
同类题型
How much does a chef __________ in your country? – Sorry, I don’t know exactly.
Two or three years ago this kind of glasses _______ a favorite for some time, but now it _______
__________ get good grades, you should try to study harder.
Young students are______ not to smoke both in and out of school