Задайте вопрос к подлежащему.
--Mrs Brown is doctor.
--Who is a doctor.
1. Oleg is hungry.--...................................
2. Olga can ski well.--.......................well?
3. Olga has got a bike.--................a bike?
4. Oleg must help them.--...............them?
5-- Nina would like to help us?
--.............................................to help us?