A.should | B.might | C.must | D.can |
A.must | B.oughtn’t to | C.may | D.can’t |
A.should | B.might | C.could | D.would |
A.Had I not seen | B.If I did not see |
C.Should I not see | D.Were I not seen |
A.can | B.may | C.shall | D.will |
A.can | B.must | C.might | D.shall |
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