there is a book on the desk 对划线部分提问
问题描述：
there is a book on the desk 对划线部分提问
答
what is on the desk? a book划线
where is the the book? desk 划线
答
What is there on the desk? 对a book 提问
答
对 a book 提问：What's on the desk?主桌上有什么?
对 a 提问：How many books are there on the desk?
不明白的再问哟,请及时采纳,多谢!