◎ 题干
It is a long time ____ they separated, but it won’t be long ____ they meet again.
A.since; beforeB.after; when C.since; whenD.after; before
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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 is a long time ____ they separated, but it won’t be long ____ they meet again.A.since; beforeB.after; when C.since; whenD.after; before…”主要考查了你对  【therebe句型】  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。