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