中文谷Sometimestheywork
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问题详情：
Sometimes they work ___ the day and sometimes ___
night.
A during , at B. on , at C. on , in
【回答】
A
知识点：介词和介词短语
题型：选择题
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问题详情：
Sometimes they work ___ the day and sometimes ___
night.
A during , at B. on , at C. on , in
【回答】
A
知识点：介词和介词短语
题型：选择题
