1. We are leaving for Moscow next week.2. Ann has already

1. Общий:
Are we leaving for Moscow next week?
Особый:
When are we leaving for Moscow?
Другой:
Are we leaving for Moscow next week or next month?
Разделительный:
We are leaving for Moscow next week, aren't we?
К подлежащему:
Who is leaving for Moscow next week?
2. Общий:
Has Ann already begun to read a new book?
Специальный:
What has Ann already begun to read?
Другой: 
Has Ann already begun to read a new book or magazine?
К подлежащему:
Who has already begun to read a new book?
3. Общий:
Will they show you how to get there?
Особый:
What will they show you?
Другой:
Will they show you how to get there or not?
Разделительный:
They will show you how to get there, won't they?
К подлежащему:
Who will show you how to get there?