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Safety in schools has been of great concern because of frequent reports about ac

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Safety in schools has been of great concern because of frequent reports about ac

Safety in schools has been of great concern because of frequent reports about accidents ________
students got injured or killed while in school.[      ]A. in which  
B. for which
C. which  
D. when

试题答案

A

标签：becauseconcerngreataboutreports

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