______ the blind wandering through the traffic, motorists would have to step on their brakes at once.
A．Seeing
B．Having seen
C． Seen
D．To have seen
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◎ 解析
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◎ 知识点
根据n多题专家分析，试题“______ the blind wandering through the traffic, motorists would have to step on their brakes at once.A．SeeingB．Having seenC． SeenD．To have seen…”主要考查了你对 【现在分词的被动式】，【现在分词】，【不定式的被动式】，【过去分词】 等知识点的理解和应用能力。关于这些知识点的“档案”，你可以点击相应的链接进行查看和学习。
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