【题目】I had no idea when World War Ⅱ________，so I turned to my teacher for help.
A.broke downB.broke in
C.broke outD.broke away
在线课程【答案】C
【解析】
考查动词短语辨析。句意：我不清楚第二次世界大战爆发的时间，所以我向老师寻求帮助。A. broke down损坏，出故障；B. broke in打断，闯入；C. broke out爆发；D. broke away逃脱，放弃。根据翻译可知C项正确。