A.should | B.might | C.could | D.Would |
A.mustn’t | B.wouldn’t | C.shouldn’t | D.couldn’t |
A.should | B.must | C.could | D.need |
A.mustn’t | B.wouldn’t | C.can’t | D.needn’t |
A.would have taken | B.would take | C.had taken | D.must have taken |
A.shall | B.may | C.can | D.will |
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