Chương 46.3 Adverb clauses of purpose

II.

1. Since yesterday was a public day, we didn't have to go to work.
2. As we didn't want to wake anybody up, we came in very quietly.
3. We didn't know what time it was because none of us had a watch.
4. As it was a nice day, we went for a walk by the sea.
5. Since the door was open, I walked in.
6. As you paid for the theater tickets, please let me pay for our dinner.
7. Since oil is an irreplaceable natural resource, we must do whatever we can to conserve it.
8. Because we didn't see Lisa for a long time, we didn't recognize her.
9. Lilian was late for work because she missed the bus.
10. Sonia was tired because she'd been working very hard.
11. Since Eve had an attractive personality, she was very popular.
12. As mother had burnt the dinner, we ate out.
13. It's a really useful book because it explains everything very clearly.
14. Because Ellie hadn't fully recovered yet, she felt weak.
15. Since all the students had done poorly on the test, the teacher decided to give it again.