Liu Yun is going to visit her aunt next week.的问句

看你问句中的那一部分。如果提问时间，则是：
When is Liu Yun going to visit her aunt?
如果提问人，则是：Who is Liu Yun going to visit next week? 或者 Who is going to visit her aunt next week?
除了上面这个提问主语，句中语序不变，提问其他成分，在原句中去掉该成分，句子谓语is紧跟特殊疑问词，后加主语Liu Yun,其他成分照写就可以了。

When is Liu Yun going to ?

When is Liu Yun going to visit her aunt ?

who is Liu Yun going to visit next week?

Who is going to visit her aunt next week?

Who is Liu Yun going to visit next week?

When is Liu Yun going to visit her aunt？

What is Liu Yun going to do next week?

对her aunt 提问：
Who/Whom is Liu Yun going to visit next week?
对next week提问：
When is Liu Yun going to visit her aunt？
对Liu Yun 提问：
Who is going to visit her aunt next week？