he enjoys learning English.(改为否定句/一般疑问句/肯定和否定回答/对划线部分提问)

问题描述:

he enjoys learning English.(改为否定句/一般疑问句/肯定和否定回答/对划线部分提问)

He doesn't enjoy learning English.
Does he enjoy learning English?
Yes, he does.
No, he doesn't.
What does he enjoy doing?