对used to 的特殊疑问句 应怎么提问？

eg.
1.She used to be lazy.
对lazy提问，就可以说: How did she use to be?
2.He used to work in a factory.
对work in a factory提问，就可以说：What did he use to do?

总之呢，就是：特殊疑问词【how,what,where,when等等（具体要看问什么）】+ did + 人称代词 + use to + 句子剩下的部分 。

Did you use to...或Used you to...