1. Does he want to become a good specialist?
He wants to become a good specialist, does he?
Who wants to become a good specialist?
Does he want to become a good specialist or a manager?
2. Does our teacher know any foreign languages?
Our teacher know some foreign languages, doesn't she?
Who knows some foreign languages?
Does our teacher knows any foreign languages or not?
3. Is Mary reading a poem?
Mary is reading a poem, isn't she?
What is Mary reading now?
Is Mary reading a poem or a novel?
4. Does every country have its own holidays?
Every country has its own holidays, hasn't it?
What kind of holidays does every country have?
Does every country have its own holidays or traditions?