1. because it was the wrong bike, we were late for school.
2. English is spoken as the first language in Australia.
3. she said that she was working at the restaurant then.
4. The English novel which Mary is reading is interesting.
5. if you work hard, your parents will be happy.
6. if you don't study harder, you'll fail the exam.
7. because the weather was cold, we didn't go swimming.
8. she lost her job because of her carelessness.
9. in order to get to sleep, she turned down the radio.
10. the coffee was good enough for him to get another cup.
11. he was careless so he had an accident.
12. although the flat is noisy, we like to live here.
13. if it rains, I won't go to the zoo.
14. owing to her good behavior, everyone liked her.
15. despite the lacking experience in teaching, she quickly picked it up.