will vs be going to

I think I _______ that jeans.

- Have you got any plans for tomorrow?

- Yes, I ______ my grandparents.  

It is hot in here. I ____ the window.

I think "Dinamo" _____ the match .

- Let`s have a picnic at the weekend.

- Great idea! We _____ the drinks.

- Are you free tomorrow?

- Sorry. I _______ for the exam.

Robots _____ everything in the future.

- Why do you want so many oranges?

- I _______ an orange juice.

I think he _____ be a doctor.

- Where are you carrying this bucket of water?

- I _____ the car.

Ann ... her sister a present.

In the evening they ____ at home.