A.must | B.should |
C.would | D.might |
A.might | B.should | C.would | D.need |
A.will | B.must | C.shall | D.may |
A.shouldn"t | B.wouldn"t |
C.mustn"t | D.needn"t |
A.would | B.shall |
C.may | D.must |
A.can"t | B.mustn"t |
C.don"t have to | D.ought not to |
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