◎ 题干
To turn off my cell phone before going to bed seems to be a rule         .
[     ]
A. to never break
B. never to have broken
C. never to be broken
D. never to be breaking
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“To turn off my cell phone before going to bed seems to be a rule . [ ]A. to never breakB. never to have brokenC. never to be brokenD. never to be breaking…”主要考查了你对  【不定式的被动式】  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。