Вставьте  shall или  will

 - I am hangry. Are you going to the shops?

 - Yes. ... get something to eat?

а) - I am going to the cinema.

    - ...   go to Arman?

b) - I am going to the language centre to study Kazakh.

     - ... come with you?

 c) - Are you going to have a holiday?

     - Yes, ... travel around the world with a friend.

 d) - It's hot in the classroom, isn't it?

     -Yes, ...  open the window.

Объесните пожалуйста, когда нужно вставлять shall, will.