1) • Have you made much progress in your work?
•Who have made much progress in his work?
•Have you made much progress in your work, or no?
•You've made much progress in your work, haven't you?
2) •Was he studying English when she came?
•Who was studying English when she came?/When was he studying?
•Was he studying when she came, or playing?
•He was studying English, when she came, wasn't he?
3) •Do I think that she was pleased with …?
•With what results was she pleased?
•Do I think that she was pleased with the results of my work or her work?
•I think she was pleased with the results of my work, don't I?
4)• Will all the countries in the world learn to live in peace with one another?
•How will all the counties in the world learn to live?
•Will all the …, or no?
•All the countries…, won't they?
5)•Do I create..?
•How do I create..?
•Do I create …, or with my friend?
•I create…, don't I?