Помогите пожалуйста,составить 4 типа вопросов по английскому

1.John and Mike are discussing the terms of a contract, aren't they?2.Who are discussing the terms of a contract?3.Are John and Mike discussing the terms of a contract?4.What are John and Mike doing?5.Are John and Mike discussing the terms of a contract or of a book?

Are John and Mike discussing the terms of a co...?- общийAre John or Maxim and Mike discussing the terms of a co...?- альтернативныйWho is discussing the terms of a co..?- специальныйJohn and Mike are discussing the terms of a co...?-разделительный