If I hadn't been an actor, I would have been an artist. (это условное предложение III типа)
1. What did she buy?
2. Which book do they use?
3. How many languages are you studying?
4. What did you see in Paris?
5.Who did you meet at the airport?
6.How many litres of petrol are you going to buy?
7. Which train are you catching?
8. Who will you visit in Paris?