There was a bloody incident and more than 20 journalists were reported in southern Philippines．
A. having been killed
B. to have been killed
C. being killed
D. killed
网友回答
A. having been killed
(答案→)B. to have been killed
C. being killed
D. killed
解析：考查固定结构。Be reported to do sth.据报道发生了某事，要用不定式，所以选B，to have been killed不定式的完成被动式，表示kill这一动作发生在主句谓语动词report之前，且和主语journalists之间是动宾关系。