A.can | B.will | C.may | D.shall |
A.will | B.do | C.are | D.would |
A.wouldn’t have been | B.mustn’t have been | C.wouldn’t be | D.hadn’t been |
A.had | B.have | C.have had | D.will have |
A.will be built | B.be built | C.shall be built | D.are to be built |
A.must | B.need | C.may | D.will |
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