A.canbe | B.shouldbe | C.mustbe | D.willbe |
A.maygo | B.mustgo | C.cango | D.musthavegone |
A.wouldbe | B.mustbe | C.usedtobe | D.couldbe |
A.need | B.dare | C.ought | D.could |
A.needtonottogo | B.donotneedgo | C.neednotgo | D.needgonot |
A.would | B.should | C.must | D.will |
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