◎ 题干
Do let your mother know all the truth .She appears______ everything.  
[     ]
A. to tell    
B. to be told    
C. to be telling    
D. to have been told
◎ 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“Do let your mother know all the truth .She appears______ everything. [ ]A. to tell B. to be told C. to be tellingD. to have been told…”主要考查了你对  【不定式的完成式】【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。