A.should | B.can | C.may | D.will |
A.won’t you | B.shall we | C.do we | D.will not you |
A.will | B.shall | C.are going to | D.went |
A.became | B.had become | C.has become | D.becomes |
A.shouldn’t | B.can’t | C.needn’t | D.mustn’t |
A.can | B.ought to | C.have to | D.must |
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