1. She had a big lunch as she was hungry.
2. All the shops were shut because it was a public day.
3. We didn't enjoy our holiday since the weather was bad .
4. She can't come to the party since she is working late next Saturday
5. I bought a computer as I want to play computer games.
6. Because we don't use the car very often, we've decided to sell it.
7. We left a note on the door as the house was empty .
8. Tom got bad marks since he didn't prepare his lesson.