1. I went home ... I was tired.

2. We decided to go to the beach ... it was a nice day.

3. She's studying ... she has a test tomorrow.

4. Please be quiet ... I can study.

5. I’ll get a map ... we can plan where we’re going.

6. Regular checks are required ... safety standards are maintained.

7. Talk louder ... everyone can hear.

8. He checked carefully .... the mistakes were caught.

9. ... it was so cold, we went home.

10. ... you are not invited, you can't come.