◎ 题干
While __________ for the bus, I happened to come across my childhood friend, Tom.
A.waitedB.waitC.waitingD.to wait
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“While __________ for the bus, I happened to come across my childhood friend, Tom.A.waitedB.waitC.waitingD.to wait…”主要考查了你对  【状语从句】  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。