求 现在进行时英语小对话

A：what are you doing now?can you help me?
B:i'm sorry ,wait a minute ,i am doing my homework
A:ok,but quickly please,it's important
B:done,what's your problem?
A:my mother forgot her passport ,she is waiting at airport,can you bring it to her？i am late for my class
B:no problem
A:oh,thank you

what are you doing,tom?
hi, jack. i am reading a story.
I cannot find Helen. do you know where she is ?
i think she is in the classroom
what is she doing?
i think she is cleaning the classroom now.
thank you. goodbye
bye.

What are you doing now?
I am reading a novel.