◎ 题干
   The famous scientist was going out _____ he found himself surrounded by lots of young people.
A.whenB.beforeC.whileD.after
◎ 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“ The famous scientist was going out _____ he found himself surrounded by lots of young people.A.whenB.beforeC.whileD.after…”主要考查了你对  【并列连词】【从属连词】  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。