Напишите разделительные вопросы 1. our president is going to visit vatican 2.lets go because it is getting dark 3.our parents are leaving for grodno tomorrow 4.this house is new

1. Our president is going to Vatican, isn't he
2. Let's go because it's getting dark, shall we
3. Our parents are leaving for Grodno tomorrow, aren't they
4. This house is new, isn't it