In recent days, 33 persons have been infected with the H7N9 virus, 9 deaths.
A. causing
B. caused
C. to cause
D. cause
网友回答
(答案→)A. causing
B. caused
C. to cause
D. cause
解析:考查现在分词做结果状语,句意:在最近一些日子里,33人感染了H7N9病毒,导致9人死亡。33人感染了H7N9病毒的结果是导致9人死亡。是结果状语,用现在分词。选A。