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Jack have kept his word.I wonder why hechanged his mind.A.mustB.shouldC.needD.wo

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Jack have kept his word.I wonder why hechanged his mind.A.mustB.shouldC.needD.wo

Jack ________ have kept his word.I wonder why hechanged his mind.

A.must

B.should

C.need

D.would

试题答案

B