◎ 题干
— What do you think of the rules? 
— I think sixteen-year-olds should be allowed            sports after school.
[     ]
A. to play
B. playing
C. played
D. to playing
◎ 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“—What do you think of the rules?— I think sixteen-year-olds should be allowed sports after school. [ ]A. to play B. playing C. playedD. to playing …”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。