◎ 题干
---The light in the room is still on. Do you know_______?
---In order to prepare for the coming exam.
A.if he works hardB.why he stays up late
C.why is he so busyD.when he will stop working
◎ 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“---The light in the room is still on. Do you know_______?---In order to prepare for the coming exam.A.if he works hardB.why he stays up lateC.why is he so bus…”主要考查了你对  【宾语从句】  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。