问题描述: For Linda,___(keep)fit is not easy because she is very lazy 1个回答 分类:英语 2014-11-18 问题解答: 我来补答 For Linda,keeping(keep)fit is not easy because she is very lazy因为句子有谓语is ,所以这里是动名词作主语(ing形式)如还有疑问~欢迎追问 展开全文阅读