◎ 题干
Many teachers strongly object ______ at school.    
[     ]
A. to smoke          
B. smoking      
C.  to smoking        
D. having smoked
◎ 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“Many teachers strongly object ______ at school.[ ]A. to smoke B. smokingC.to smokingD. having smoked…”主要考查了你对  【介词和介词短语】【动名词】  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。