◎ 题干
No matter how bright a talker you are, there are times when it's better ________ silent.
[     ]
A. remain  
B. be remaining
C. having remained  
D. to remain
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“No matter how bright a talker you are, there are times when it's better ________ silent.[ ]A. remainB. be remainingC. having remainedD. to remain…”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。