◎ 题干
It’s going to be some time _____ he sees his father again, _____ business has just been started in Switzerland.
A.after; whoB.before; whoseC.when; whoseD.since; who
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“It’s going to be some time _____ he sees his father again, _____ business has just been started in Switzerland.A.after; whoB.before; whoseC.when; whoseD.sinc…”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。