1. 【2012吉林重点中学协作体高考适应性】—I'll ask the teacher about the attributive clause. I'm very puzzled about it.
—That's just ________ most of our classmates have doubt.
A．what B．why
C．where D．how
【答案】C
【解析】句意：——我要问老师定语从句的问题。我对它感到很困惑。——那也是大部分同学有疑问的地方。where引导的是表语从句，have doubt on/about“怀疑……”，doubt后无介词，所以用where。
2. 【2012江苏南通高三第期末调研】The sport then was a little different from ________ we currently know as gymnastics.
A. that B. what C. which D. where
【答案】B
【解析】考查名词性从句的引导词。引导一个名词性从句并作know的宾语，所以勇敢what。
