问题描述: Air,_webreathe every day,isaround us all the time.A:that B:which C:it 1个回答 分类:英语 2014-10-23 问题解答: 我来补答 B空格处做breath的宾语.可用that或which.但因前面有逗号所以是非限定性定语从句.故用which不用that 展开全文阅读