英语题目解释 1. Be sure to give it back in time. 为什么用to give
问题描述：
英语题目解释 1. Be sure to give it back in time. 为什么用to give
英语题目解释
1. Be sure to give it back in time. 为什么用to give
3. I hoped you (hadn't waited) too long outside the Nanfang Theatre. 为什么用hadn't waited
答
1、be sure后面可跟of/about/that/to do ,跟to give是属于跟不定式的用法.
3、hadn't waited属于主句用过去时,从句用过去完成时