A. shall | B.can | C.must | D.should |
A.would | B.should | C.must | D.could |
A.don’t need | B.mustn’t | C.don’t have to | D.hadn’t better |
A.did you | B.would you | C.you did | D.you would |
A.could have prepared | B.shouldn’t have prepared |
C.must have prepared | D.can’t have prepared |
A.could | B.would | C.should | D.might |
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