问题描述： at that time 是用在过去式吗 1个回答 分类：英语 2014-10-19 问题解答： 我来补答 at that time:是指在过去某段特定的时间,是特指 adv.在那时Where were you at that time?你当时在哪里呢? 展开全文阅读
