问题描述: .The accident is reported to have occurred _______ the first Sunday in February.选一个答案 1个回答 分类:英语 2014-11-02 问题解答: 我来补答 填介词on, 在具体的某一天(某日)前用on.在某年,某月,某季节前用in. 展开全文阅读