举例来说
1.
如果疑问词作主语,语序就不用变了,因为那本身就是陈述语序,
Who is on duty?
what's wong with you?
2.如果疑问词不作主语的话,那么疑问词后面就是个一般疑问句,
：如果后面的一般疑问句是由do\does\did构成的,要把这三个词去掉,同时要把主语后面的动词改成相应的形式,does时动词改单三,did时动词该过去时：
where does Tom live?------where Tom lives
What did she write?---------What she lived
：如果后面的一般疑问句是由其他助动词或系动词be构成的,直接把助动词或系动词和主语调换顺序就可以：
what is he doing?-----what he is doing
where has she been?----where she has been