问题描述: It's so cold today.Yes,it;s colder than it was yesterday.为什么用was?固定搭配吗? 1个回答 分类:英语 2014-09-23 问题解答: 我来补答 不是的因为后半句的时间状语是yesterday 所以要用was It was cold yesterday.所以要用was希望对楼主有所帮助~~ 展开全文阅读