3.A) It lasted more than six hours.B) No injuries were yet reported.C) Nobody was in the building when itbroke out.D) It had burned for 45 minutes bythe time firefighters arrived.4.A) Recruit and train morefirefighters.B) Pull down the deserted shoppingmall.C) Turn the shopping mall into anamusement park.D) Find money to renovate the localneighborhood.[音频]