Question

【题目】We are learning what we should do if a fire .

A. breaks down B. breaks out C. breaks into D. breaks through

Answer 1

【答案】B

【解析】句意：我们正在学习我们应该做什么，如果火灾突然发生。A. breaks down 分解；故障；B. breaks out爆发；C. breaks into闯入；D. breaks through打破，折断。根据题意，故选B。