No,I'm not.I am playing the piano now.的问句是什么?

No,i am not in the library?的问句是什么? I like playing the piano.变问句 I'm playing in the park的问句是什么? No,I am not helpful at home .问句是什么? Tim,what are you doing?I'm p playing the piano now No.I'm not having a picnic的问句 No,i'm not a policeman的问句 i was playing the piano 和i am playing the piano 第一句成立吗 第二句呢 英语填空!①I am （n）playing the guitar .But I am playing drums now I am going to the hospital的问句是什么 I am Wearing the pink dress.的问句是什么 I am now on the moon.相应问句