单选题 Staring at the ruins of his house, he couldn't______ how the fire had broken out.
【正确答案】 C
【答案解析】解析:bring out:使显现,使表现出;turn out:生产,制造;结果是;证明是;figure out:弄懂,弄清楚,弄明白;pick out:精心挑选。根据句意,可知C为正确答案。