A.must | B.would | C.need | D.shall |
A.shall | B.changes | C.is changing | D.changed |
A.would better not drive | B.would better not to drive |
C.had better not drive | D.had better not to drive |
A.shouldn’t shout | B.mustn’t shout |
C.shouldn’t have shouted | D.mustn’t have shouted |
A.should | B.shall | C.can | D.must |
A.had studied hard; would have been | B.should have studied hard; should have been | C.had studied hard; would be | D.would study hard; must have been |
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