◎ 题干
-  When should I hand in my paper?
— Your paper must  _   as soon as the bell_   .
A.hand in; rings B.hand in; will ring
C.be handed in; will ring D.be handed in: rings
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“- When should I hand in my paper?— Your paper must _as soon as the bell_.A.hand in; rings B.hand in; will ringC.be handed in; will ring D.be handed in: ring…”主要考查了你对  【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。