问题描述: 求大神做几道完成句子 1个回答 分类:英语 2014-12-05 问题解答: 我来补答 1,can't have been cleaned2,keep healthy3,double size than4,known for5,the second longest river6,in case it gets cold 再问: 在吗 再答: 怎么了 展开全文阅读