长难句结构分析 — 英语选择题
题目
分析下面长难句的主干结构：The scientist who discovered the method that reduced waste by half, which surprised the whole industry, was invited to speak at the conference held in Paris. 本句的主语核心词及谓语分别是：A. scientist; was invited B. method; reduced C. scientist; discovered D. conference; held