Complate the sentences. Use the past perfect or past simple from of the pairs of werbs.

1. I had heard the news before she told me about it. 2. I watched the film after I had read the book. 3. I phoned Alex after I had sent him the email. 4.  The disco didn’t finished when we had left, but we couldn’t stay. 5. When I arrived at his house, the party hadn’t started yet. 6. People hadn’t invented mp3 players when Gran was young. 7. He played the piano really well because his dad had taught him.