A.might | B.must | C.can | D.should |
A.could | B.might | C.had to | D.was able to |
A.won’t | B.can’t | C.mustn’t | D.needn’t |
A.had been | B.were | C.was | D.would be |
A.stole, set | B.had stolen, be set | C.steal, be set | D.had stolen; must be set |
A.had forgotten,had visited | B.forgot, have visited |
C.forgot,would have visited | D.have forgotten,would visit |
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