◎ 题干
All of the guests         by 9 o’clock , but the host        until 15 minutes later .
A.arrived ; didn’t turn up B.had arrived ; didn’t turn up
C.arrived ; hadn’t turned up D.had arrived; hadn’t turned up
◎ 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“All of the guests by 9 o’clock , but the host until 15 minutes later .A.arrived ; didn’t turn up B.had arrived ; didn’t turn up C.arrived ; hadn’t turned…”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  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。