After knocking down the old man, the inhuman driver left the accident scene in a
hurry, the law to punish him.
A. defeating
B. challenging
C. informing
D. absorbing
网友回答
A. defeating
(答案→)B. challenging
C. informing
D. absorbing
解析：考查现在分词作状语。句意：撞倒老人之后，这位没有人性的司机匆忙的离开了事故现场，挑战法律（违法）就要惩罚他。challenge有抗议，反驳之意。在这里challenging 做伴随状语。