Помогите сделать предложения вопросительными и отрицательными ? My cousin is twelve. management is difficult. we are future agricultural engineers. his mother-in-law is afraid of rats. medicine books are boring

1 Management is difficult.  Is management is difficult? Management isn't difficult.  2 We are future agricultural engineers. Are we future agricultural engineers? We aren't future agricultural engineers. 3 His mother-in-law is afraid of rats. Is his mother-in-law afraid of rats? His mother-in-law isn't afraid of rats. 4 Medicine books are boring. Are medicine books boring? Medicine books aren't boring