1.Theaccident/carcrashcausedthedeathof15people.
2.15peopledied,5gotbadlyinjuredand3werelightlywoundedinthisaccident/explosion.
3.Howmanypeopleweredead/injuredinthisaccident?
4.Thekitchenwasonfire,butnoinjuries,fortunately.
5.Twoaccidents/crashes/trafficaccidents...Crash表示大车祸,accident表示一般车祸,都是可数.