相关Abigfirebrokeoutinac的文学知识

问题详情：AbigfirebrokeoutinaclothingfactoryinourcitylastWednesday.At9:18thatmorning,whentheemployeeswereworking   61  (busy)inthe4-storeyedbuilding,heavysmokewasseen  62  (come)outofthewindows...