您的位置: 首页 > 作业答案 > 英语 > They have been to America.(改为一般疑问句) They have been to America.(改为一般疑问句) 分类: 作业答案 • 2021-12-20 12:06:47 问题描述: They have been to America.(改为一般疑问句) 答 Have they been to America?