1. When is the expedition returning?
2. What are we doing now?
3. Who is teaching her little son to read?
4. What kind of book am I reading?
5. Who was still arguing when I entered the room?
6. For how long was our group staying in Vitebsk?
7. What was he listening when we were talking?
8. When will they be moving to a new flat?
9. When shall we be listening to Petrov?
10. When is he coming?