There were five people killed in the road accident.A.injured on B.killed on C.killed in D.injured请说明原因对不起，刚打错了应该是There were five people _________ the road accident.A.injured on B.killed on C.killed in D.injured

There were five people killed in the road accident.A.injured on B.killed on C.killed in D.injured请说明原因对不起，刚打错了应该是There were five people _________ the road accident.A.injured on B.killed on C.killed in D.injured
There were five people killed in the road accident.
A.injured on B.killed on C.killed in D.injured
请说明原因
对不起，刚打错了应该是There were five people _________ the road accident.
A.injured on B.killed on C.killed in D.injured

There were five people killed in the road accident.A.injured on B.killed on C.killed in D.injured请说明原因对不起，刚打错了应该是There were five people _________ the road accident.A.injured on B.killed on C.killed in D.injured
accident解释为事故,不幸,意外,与in连用,例如be killed in a car/road accident,在车祸/交通事故中遇难

in the accident，为固定搭配，其它选项中用介词on或没有介词都是不对的

C, killed in the accident.
in 指定发生的场景, 并且在这里这也是一个比较固定的习惯搭配...

楼主说明白点啊，空在哪啊。。