(2013·江苏，28)In the global economy，a new drug for cancer， it is discovered，will create many economic possibilities around the world.
A. whatever
B. whoever
C. wherever
D. whichever
网友回答
A. whatever
B. whoever
(答案→)C. wherever
D. whichever
解析：考查状语从句。此处考查－ever引导的让步状语从句。通过分析从句，可知句子不缺少主干成分，故排除代词A、B、D三项，故答案选C。