◎ 题干
The story _____ the morning of May 1st.
[     ]
A. happened in
B. happened on
C. was happened in
D. was happened on
◎ 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“The story _____ the morning of May 1st. [ ]A. happened in B. happened on C. was happened in D. was happened on …”主要考查了你对  【实义动词】【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。