Ontheirarrivalatthefactory,they__

发布时间：2020-07-27 03:05:10

On their arrival at the factory, they ________ looking into this matter．A.got aroundB.went aboutC.set outD.ended up

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B解析他们一到工厂，立刻着手展开调查；go about doing：着手做某事；set out后面接不定式结构。
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