they have a book sale in their school.对划线部分提问
问题描述：
they have a book sale in their school.对划线部分提问
答
首先看划线部分是问什么的，在来决定疑问词，然后在将句子变为一般疑问句，就可以了
答
没有划线，怎么提问？
答
What do they have in their school ? ( 对 a book sale 提问）
Where do they have a book sale ? ( 对 in their school 提问）
对划线部分提问做出来的是个特殊疑问句： 特殊疑问词+ 一般疑问句
祝你学习进步,更上一层楼! (*^__^*)
不明白的再问哟,请及时采纳,多谢 !