◎ 题干
People usually work             the day and sleep              night.

[     ]

A. in, in
B. in, at
C. at, at
D. at, in
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“People usually work the day and sleepnight. [ ]A. in, in B. in, at C. at, at D. at, in …”主要考查了你对  【介词】  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。