问题

___ the exam, but you were too careless.
A:must have passed
B:must pass
C:could have passed
D:could pass;
B:must pass
C:could have passed
D:could pass;
正确答案是:
同类题型
Can I help you—Yes ,please.I need _____ sport s socks.
Could you tell me ____________—Sure. Walk straight along this street and you’ll find it.
He _____ cards with his friends, but now he _____ a walk after supper.
It’s said that scientists have ________ a way to deal with Influenza A/HiN1.— Really That’s great!
The records of S.H.E are____ being bought, for their songs can bring energy into us.