Составить предложение в present continuous, расписав его по утвердительной, отрицательной и вопросительной форме.

He is reading right now (утв.)
He isn't reading right now (отр.)
Is he reading right now?

I'm reading an interesting book about the history of Great Britain.
I'm not reading an interesting book about the history of Great Britain.
Are you reading an interesting book about the history of Great Britain.