I an doing my homework at home now

问题描述:

I an doing my homework at home now
改成否定句/一般疑问句/否定回答/划线部分提问(划线的是doing my homework)

否定句:I am not doing my homework at home now.
一般疑问句:Are you doing your homework at home now?
否定回答:No,I am not.
划线部分提问:What are you doing at home now?