Past simple or past perfect 4

Choose the right answers, and then press "Check".
  1. When he up, his mother had already prepared breakfast.
  2. She me the book that she had read.
  3. My friend up all the biscuit we had baked.
  4. In the evening, the children their daddy what they had seen at the zoo.
  5. I had known him for a long time before I his family.
  6. I them some of the candies I had bought.
  7. The teacher the tests we had written.
  8. They me the pictures, they had taken during their holidays.
  9. We to watch a film that we hadn't seen before.
  10. After Eric had made breakfast he his friend.