I'm doing homework是什么意思

是 i do homework 还是 i'm doing homework I'm doing homework是什么意思 I'm doing my homework.对doing my homework提问 I’m doing my homework now.对画线部分提问【划得是I’m doing my homework】 i'm doing homework and i'm doing my homework 是一样的吗?两者语法上有区别吗? I‘m doing my homework 翻译 I'm doing homework.问句是什么 I‘m doing my homework.划线部分提问划线部分是doing my homework— — you—— I'm doing my homework.(把I 改成he) I'm busy doing my homework 对doing my homework 提问 I‘m doing my homework.改一般疑问句 I'm doing my homework.改一般疑问句 I m doing my homework.（变问句）? I'm doing my homework.(改为否定句) i'm doing homework 和 i'm doing my homework 是不是一样的意思,语法上有什么不同吗? I am doing my homework now 划线部分提问(划的是doing homework) I am doing my homework.对doing my homework.提问是( )you( ). A:what are your doing ? B:i'm doing my homework .A:what are your doing ?B:i'm doing my homework .why?请问这个why怎么解?