The students are in the classroom now.  (改为否定句)
The students _________ _________ in the classroom now.
He doesn’t often stay at home.  (改为肯定句)
He _________ _________ at home.
His father goes to work by bike.  (改为一般疑问句)
_________ his father _________ to work by bike?
My favourite subject is Maths.  ( 改为同义句)
I _________ Maths _________.
They all come from Nantong.  (对划线提问)
_________ _________ they all come from?.