Ответ:
Утвердительные:
I am going to watch new horror film.
She is going to cook something.
He is going to write a letter for his friend.
They are going to eat birthday cacke.
We are going to go to the shopping centre.
Отрицательные:
He isn't going to buy new car.
I am not going to drink coffee.
She isn't going to cook dinner.
They aren't going to travel.
We aren't going to sleep.
Вопросительные:
Are you going to buy computer again?
Is she going to travel?
Are they going to play computer games?
Is he going to repair his watch?
Are they going to buy new TV?