Past Simple:
1. He did it very well
2.I slept for two hours
3.I went to Italy last month
4. We played football
5. You did the right thing.
Past Perfect:
1. I had been in the office by 7 a.m already.
2. I had already finished my work by the time he came.
3. He wanted me to join the tennis club. But I had already joined the football club.
4. I wanted to go to school with him. But he had already gone.
5. My parents had returned from their work by the time I came from the school.