◎ 题干
Nowadays there are still a number of students        school at various grades due to a lack of money in
some poorer areas.
[     ]
A. leaving out
B. making out
C. letting out
D. dropping out
◎ 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“Nowadays there are still a number of studentsschool at various grades due to a lack of money insome poorer areas.[ ]A. leaving outB. making outC. letting out…”主要考查了你对  【动词短语】  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。