________ that far, the whole class didn't want to turn back, because they were afraid to walk in the dark．A.GoingB.Having goneC.To goD.Gone
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B解析这句句子的意思是“已经走了那么远，整个班级不想再回头，因为他们害怕走夜路。”这里的didn't want是句子的主要谓语，而going和the whole class构成主动关系，而“已经走那么远”，说明有很明显的先后关系，所以我们用Having done作状语。