问题描述：
The building around the corner caught fire last night.The police are now ___ the matter.
A.seeing through B.working out C.looking into D.watching over
请翻译选项,选择正确答案,并说明理由
A.seeing through B.working out C.looking into D.watching over
请翻译选项,选择正确答案,并说明理由
问题解答：
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