1. Our students are offered a wide choice of work all over the country, aren't they?
Who is offered a wide choice of work all over the country?
Are our students offered a wide choice of work all over the country or abroad?
Where are our students offered a wide choice of work?
Are our students offered a wide choice of work all over the country?
2. An article about American college graduates is being broadcast, isn't it?
What is being broadcast?
Is an article about American college graduates being broadcast?
What kind od article is being broadcast?
Is an article about American or English college graduates being broadcast?
3. The lectures will be delivered in English, won't they?
Will the lectures be delivered in English?
What will be delivered in English?
Where will the lectures be delivered?
Will the lectures be delivered in English or in Russian?
4. Our note-books are regularly looked through by the teacher, aren't they?
Are our note-books regularly looked through by the teacher?
Are our note-books regularly looked through by the teacher or by the students?
What is regularly looked through by the teacher?
When are our note-books regularly looked through?