◎ 题干
---Where was your sister at this time yesterday evening ?
---She was writing an e-mail ______ I was watching TV at home.
A.after B.as soon as C.while D.until
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“ ---Where was your sister at this time yesterday evening ? ---She was writing an e-mail ______ I was watching TV at home.A.afterB.as soon asC.whileD.until…”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。