问题描述: We must have fruit and vegetables ______(keep) healthy. 1个回答 分类:英语 2014-09-26 问题解答: 我来补答 We must have fruit and vegetables (to keep) healthy.我们必须吃水果和蔬菜来保持健康.括号中要填动词的不定式,表示吃果蔬的目的. 展开全文阅读