您现在的位置是:首页 > 学科知识查询 > 高中英语题库

Three-quarters of the land here wet land, an ideal place for migrating birds.A.areB.having beenC.isD

编辑:chaxungu时间:2026-04-24 13:01:36分类:高中英语题库

Three-quarters of the land here ________ wet land, an ideal place for migrating birds.
A.areB.having beenC.isD.being在线课程C