问题描述：
这是什么从句?We should pay great attention to safety
We should pay great attention to safety in schools because of frequent reports about accidents _______ students got injured or killed while in school.
A.in which B.for which C.which D.that
求分析!
We should pay great attention to safety in schools because of frequent reports about accidents _______ students got injured or killed while in school.
A.in which B.for which C.which D.that
求分析!
问题解答：
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