Решение:
- An earthquake destroyed the town. (Активный залог, землетрясение само разрушило).
- The minister was welcomed by the people. (Пассивный залог, министра приняли люди).
- The fire was put out. (Пассивный залог, огонь потушили).
- My parents gave me a present. (Активный залог, родители сами дали).
- English is spoken here. (Пассивный залог, говорят на английском).
- The work will be finished by two. (Пассивный залог, работа будет закончена к двум).
- John cleaned the bathroom. (Активный залог, Джон сам убрал).
Ответ: destroyed, was welcomed, was put, gave, is spoken, will be finished, cleaned.