The boss____________ the worker how to do it, or the accident couldn't have happened.
A.can't have told | B.ought to tell |
C.could have told | D.mustn't have told |
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The boss____________ the worker how to do it, or the accident couldn't have happened.
A.can't have told | B.ought to tell |
C.could have told | D.mustn't have told |
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