karen loves her cats. She ___ killed them.
A: must have
B: might not
C: might have
D: can't have
A: must have
B: might not
C: might have
D: can't have
举一反三
- Susan refuses to marry Jack now. She ________ mind. A: must change B: can’t have changed C: must have changed D: might have changed
- Where ________ Mary have put the empty bottles? -She ________ them away. They must be somewhere. A: can; can't have thrown B: must; needn't C: must; must have thrown D: can; mustn't have thrown
- I _____ them, but I wasn’t able to. A: ought to have helped B: must have helped C: might help D: needn’t have helped
- Tom ____________ to the beach. He hates being in the sun. A: might have gone B: can’t have gone C: may have gone D: must have gone
- The dancer might have been killed in the crash if she _________ (go) to American by plane.