past perfect - positive sentences

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. Note that you will lose points if you ask for hints!
1. She was late because her car (break) down.
2. My friend corrected the mail which I (write).
3. Mr Cole was in hospital because he (cut) his finger.
4. They (live) in Greece before they moved to China.
5. She went to the zoo after she (finish) her work.
6. The dog ate all the sausages which we (buy).
7. After we (have) breakfast we went to the city centre.
8. I had to clean the carpet after somebody (spill) wine on it.
9. Nothing happened after he (turn) on his laptop.
10. They moved to Rome after they (marry).
11. Caroline felt ill after she (eat) fish and chips.
12. He suggested meeting at the same place they (meet) before.
13. Tina was sad because her classmates (call) her names.
14. She (change) trains two times before she arrived.
15. They (date) for months before they became a couple.
16. The milk went bad because John (put) it in a hot place.
17. Tom (study) for 5 years before he became a teacher.
18. He (repair) the broken bike before I needed it.
19. She improved her mark because she (learn) a lot.
20. He picked her up at the deli after she (phone) him.