◎ 题干

— Did he realize the serious situation immediately?
— No. It was quite a long time ________ he really realized it.
A.now thatB.whenC.ever sinceD.before
◎ 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“— Did he realize the serious situation immediately?— No. It was quite a long time ________ he really realized it.A.now thatB.whenC.ever sinceD.before…”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。