Условие задания:

3 Б.
Read these sentences and complete them, using a verb + out. Use the suitable tenses.
1. Steve is very fit. He does a lot of sport and ______ regularly.
2. The new medicine will be ______ on a small group of patients.
3. We thought she was American at first, but she _______ to be Swedish.
Raymond Murphy. English Grammar in Use- Cambridge: CUP, 379p.