◎ 题干
_____ nature reserves _____ us learn more about protecting animals.          
[     ]
A. Studying, helps
B. Studies, to help
C. Study, helping
D. Studying, help
◎ 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“_____nature reserves_____ us learn more about protecting animals. [ ]A. Studying, helps B. Studies, to help C. Study, helping D. Studying, help…”主要考查了你对  【动名词】【一般现在时】【主谓一致】  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。