英语单选题
We can't form a correct opinion , for we need actual knowledge ______ our thinking. A which to base on B on which to base Why?
选A，因为which to base on 整个是做定语的，与what to do 的句型一样
We can't form a correct opinion , for we need actual knowledge ______ our thinking. A which to base on B on which to base 选B,base on以......为基础......,which代替knowledge,base our thinking on actual knowledge,
答：1选D，既然我们 有了确定的主题，就不要随意（at random）谈 2选A，这里相当于一个条件状语从句，条件句必不能用将来时，排除B,D ，C时态不对 3选D...详情>>
答：B 被动语态，be found to do. A中的made与found均为过去分词，冲突！详情>>
问：hArd work 和hArd--working有什么区别
答：一个是名词 一个是形容词撒详情>>
