1. We hadn't seen you coming because we had been very busy.
2. I wanted to write a book after I had visited Paris.
3. Olly got a good mark because she had prepared for the exam.
4. What did you do when your car had broken?
5. What did she always cry after she had watched that film?
6. I didn't know where we were going because we hadn't bought a map.
7. He hadn't seen Michael so he didn't know where he was.