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7. Despite his poor family, he didn't leave school.
8. Because of his good conduct, all the teachers love him.
9. Because of the noise, we couldn't study.
10. Despite the traffic jam, these students didn't arrive late.
11. Because of the noise, Mary can't sleep.
12. Because of his hard life, he left school.
13. In spite of the narrow streets, many people drive cars in this city.
14. I couldn't do the test because of its difficulty.
15. Because of being lazy, Nick is often punished.

2/
1. Even though she told the truth, the policeman didn't believe her.
2. Because he is late for work often, he is dismissed.
3. Because he drove too fast, he caused a serious accident.
4. Because she was hungry, she ate much.
5. Because my neighbor lost all of his money, he couldn't return home.
6. Because the weather was hot, he carried the bed onto the roof of his house.
7. Because I didn't hear the speaker, I moved to the front row.
8. Because these students had an accident, they arrived late.