I am very-----------my homework now

I am very-----------my homework now I am doing my homework ( r ) now 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) now i am very sad I am ___do my homework I am doing my homework now.I have no time to play ping-pong Sorry,I can't play with you.I am (b ) doing my homework now. I am very t＿.I don't want to do my homework. 这句话是现在进行时还是一般现在时I am doing my homework now i am doing my homework now.改成一般疑问句,并作否定回答 I am doing my homework now.(对画线部分提问）