英语句型转换 :将they asked what jack was doing变为否定句；一般疑问句

网友回答

否定句：They did not ask what jack was doing.
一般疑问句Did they ask what jack was doing?
Was Jack asked by them what he was doing?
特殊疑问句：
What did they ask?
What did they ask about Jack?
What did they want to know about Jack then
======以下答案可供参考======
供参考答案1:
Did they ask what Jack was doing?
What did Jack ask?
供参考答案2:
1 they didn't ask what jack was doing
2 did they ask what jack was doing?
3 what did they ask?
供参考答案3:
否定句：They did not ask what jack was doing.
一般疑问句Did they ask what jack was doing?
Was Jack asked by them what he was doing?
特殊疑问句：
What did they ask?
What did they ask about Jack?
What did they want to know about Jack then