A.Should | B.Can | C.Shall | D.Will |
A.must | B.can | C.need | D.should |
A.If I knew | B.If I know | C.Had I known | D.Did I know |
A.can | B.should | C.ought to | D.must |
A.shouldn’t shout | B.shouldn’t have shouted |
C.mustn’t shout | D.mustn’t have shouted |
A.Shall | B.Would | C.May | D.Must |
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