◎ 题干
—I don't know _______.
—You can go and ask Jack.
[     ]
A. when does the train leave
B. that we will plant trees or not
C. if she had come yesterday
D. what I should buy for him
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—I don't know _______. —You can go and ask Jack. [ ]A. when does the train leaveB. that we will plant trees or not C. if she had come yesterday D. what I …”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。