Составьте отрицательные предложения he is reading book , we are playing computer games , she is helping mum i am working now
И помогите тут http://znanija.com/task/15714770
He is not/isn't reading the book. We are not/aren't playing computer games. She is not/isn't halping mum. I am not working now.
He isn't reading book.We dosn't playing computer games.She isn't helping mum.I don't working now