am~doing~my~homeworke~now?变为一般疑问句是什么?

am~doing~my~homeworke~now?变为一般疑问句是什么? I am doing my homework now.改为一般疑问句 I am doing my homework.变成一般疑问句是什么? i am doing my homework now.改成一般疑问句,并作否定回答 i am listening to music now 变为一般疑问句 还有它的肯定、否定回答 it is raining now.变为一般疑问句 I am a teacher 变为一般疑问句 i am at school(变为一般疑问句) I am from China变为一般疑问句 I am playing chess with my sister.变为否定句和一般疑问句.做两种回答 l'm doing my homework now改为一般疑问句 并作否定回答 I‘m doing my homework now（改为否定句和一般疑问句）