精选优质文档-倾情为你奉上2019-2020年高考英语语法专题复习分类汇编-名词性从句1. Before a problem can be solved, it must be obvious _ the problem itself is. (xx湖南卷31) A. what B. that C. which D. why【解析】选A。空白处后句子缺表语。因此不能选B。B中的that 只起引导作用,无实意。而该句选what既起了引导作用,又作了句子成分表语。 2. It is still under discussion _ the old bus station should be replaced with a modern hotel or not. (xx重庆卷22)A. whether B. whe