1. They went home after they had finished their study.
2. Yesterday when I arrived to the party, they had already came home.
3. After  the  guests  had left,she went back into the living room and switched
  off the light.
4. On arrival at home I found that she had just left just a few minutes before.
5. Before he went to bed, he had done his homework.
6. When they got to the place, the man had died 
7. He had done nothing before he saw me.
8. He thanked me for what I had done for him.
9. I was sorry that I had hurted him.
10. After they had gone , I sat down and rest