A.may | B.can | C.must | D.will |
A.Should | B.Could | C.May | D.Must |
A.prefers | B.likes to | C.has better | D.would rather |
A.should hear | B.heard | C.hear | D.was heard |
A.mustn’t have run | B.can’t have run | C.shouldn’t have run | D.needn’t have run |
A.could | B.can | C.will | D.must |
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