问题描述: 英语use up主被动用法给几个例句,再说一下如果是it放哪 1个回答 分类:英语 2014-12-10 问题解答: 我来补答 We have used up all tools .All tools have been used up by us .it 放中间.如:We have used it up . 展开全文阅读