问题描述: The girl is singing a song.改为否定句,改为一般疑问句,肯定句回答,否定句回答 1个回答 分类:英语 2014-09-25 问题解答: 我来补答 否定The girl is not singing a song疑问Is the girl singing a song?Yes,she is/No,she isnt 展开全文阅读