My favourite hobby is reading（对划线部分提问）reading是划线的~

My favourite hobby is reading（对划线部分提问）reading是划线的~
My favourite hobby is reading（对划线部分提问）
reading是划线的~

My favourite hobby is reading（对划线部分提问）reading是划线的~
What is your favourite hobby?
reading这里看成一件事,所以用what

What is your favourite hobby?

What is your favourite hobby

What's your favourite hobby ?