问题描述: all you had to do was think a little harder ,was后面为什么加think的原形? 1个回答 分类:英语 2014-10-18 问题解答: 我来补答 为你 was 是系动词,后面的不定式短语 to think... 作表语.当was前面出现动词do的时候,不定式符号to可以省略,此时就剩下think了. 不懂请追问,满意请采纳.谢谢! 展开全文阅读