Open the brackets, using the Passive Voice: 1. He was sure that his mistake never (discover). 2. When she returned, the subject of the conversation already (change). 3. She didn’t follow the advice she (give). 4. Everybody (send) an invitation? 5. All the books from the library (return) by the end of the term. 6. The invitation (refuse; accept)? 7. I didn’t know that the letter (lose). 8. He said he had never been there but he often (tell) about this place. 9. It always (know) as a most wonderful place for a holiday. 10. When my parents were born, television (not invent) yet. 11. I never (speak) to like that before. 12. There are books that (not read) for years. 13. The house was dark and damp inside like any other building which (not live in). 14. When we came to the cinema, all the seats (sell).