A.mustn’t | B.shan’t | C.shouldn’t | D.needn’t |
A.not travel | B.did not travel | C.should travel | D.goes traveling |
A.would go, had been | B.go, was | C.went, had been | D.must go, was |
A.need | B.can | C.must | D.Should |
A.must | B.shall | C.will | D.Can |
A.don’t have to | B.mustn’t | C.needn’t to | D.shouldn’t |
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