(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 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。答案 c
