◎ 题干
I have warned him _______ that, but he didn't listen to my warning.
[     ]
A. don't do
B. not to do
C. to not do
D. don't to do
◎ 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“I have warned him ______ that, but he didn't listen to my warning. [ ]A. don't do B. not to do C. to not do D. don't to do …”主要考查了你对  【不定式】  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。