I an doing my homework at home now

I an doing my homework at home now Am i doing my homework at home? I am doing my homework at home for three days. I am doing my homework ( r ) now I'm doing my homework at home at night. 对划线部分提问 at home at n I do my homework at home. 请问是I forget my homework at home.还是I left my homework at home Tom is busy now.He is doing his homework at home now的同义句 I am doing my homework now.改为一般疑问句 I am doing my homework now 划线部分提问(划的是doing homework) I'm sorry,I left my homework at home She is busy now.She is doing her homework at home（同义句怎样写?