A.must | B.may | C.shall | D.Should |
A.must happen | B.should have happened |
C.could have happened | D.must have happened |
A.isn’t | B.didn’t | C.don’t | D.won’t |
A.Shall | B.Will | C.Does | D.Has |
A.might | B.should | C.can | D.will |
A.will go | B.would go | C.would have gone | D.go |
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