A.won""t ; can""t | B.mustn""t ; may | C.shouldn""t ; must | D.can""t ; shouldn""t |
A.must | B.need | C.should | D.can |
A.dare not to go | B.don""t dare to | C.don""t dare | D.dare not to |
A.must have studied | B.might study | C.should have studied | D.would study |
A.can""t be | B.shouldn""t be | C.mustn""t have been | D.couldn""t have been |
A.must | B.can | C.may | D.will |
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