—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 |
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—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 |