34i. LA VOZ PASIVA. THE PASSIVE VOICE (Tema 60, desde la página 331 hasta la página 338 de Gramática Inglesa para Estudiantes Españoles).

34i. Transform the following sentences into the passive voice. Do not mention the agent unless it seems necessary (60.1, 60.1.1, y 60.1.2; páginas 331, 332 y 333 de Gramática Inglesa para Estudiantes Españoles):

34i. Transform the following sentences into the passive voice. Do not mention the agent unless it seems necessary (60.1, 60.1.1, y 60.1.2; páginas 331, 332 y 333 de Gramática Inglesa para Estudiantes Españoles):

1. They were cooking dinner
2. Someone has just opened the windows
3. They haven’t studied the passive voice yet
4. My father has already paid the bill
5. They have built the road for two years
6. They haven’t solved the problem yet
7. Have they found the wallet yet?
8. They haven’t won the league yet
9. She has already spent a lot of money
10. Have your parents ever seen her?