A.haven’t | B.cannot | C.mustn’t | D.needn’t |
A.Can; may | B.Can’t; can’t | C.May; can’t | D.can; can |
A.Must; needn’t; may | B.will; mustn’t; ought to |
C.Shall; can’t; have to | D.Should; didn’t have to; can |
A.can’t be | B.wouldn’t be |
C.mustn’t have been | D.couldn’t have been |
A.must | B.can | C.should | D.need |
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