1. I've known him all my life, haven’t` I? – разделительный
Have I known him all my life? – Общий
Have I known him or her all my life? -альтернативный
Who has known him all my life? – К подлежащему
How long have I known him? – Специальный
2. There is a bridge over the river, isn`t there? – разделительный
Is there a bridge over the river? – Общий
Is there a bridge over the river or lake? альтернативный
What is over the river? К подлежащему
Where is there a bridge? – Специальный
3. I would like a cup of tea, wouldn`t I? – разделительный
Would I like a cup of tea? – Общий
Would I like a cup of tea or coffee? альтернативный
Who would like a cup of tea? К подлежащему
What would I like? – Специальный
4. Yesterday I spoke to my sister, didn`t I? – разделительный
Did I speak to my sister yesterday? – Общий
Did I speak to my sister or brother yesterday? альтернативный
Who spoke to my sister yesterday? К подлежащему
When did I speak to my sister? – Специальный
1. They are able students.
Альтерн.: Are they or we able students?
Разделит.: They are able students, aren't they?
2. My brother gives lectures in universities.
Does my brother give lectures in universities or secondary schools?
My brother gives lectures in universities, doesn't he?
3. She spent a lot of time in the country last year.
Did she or he spend a lot of time in the country last year?
She spent a lot of time in the country last year, didn't she?