Viết lại câu sao cho nghĩa không thay đổi

1. She stayed at home  because her mother was sick
  => Because of.....
2. He didn't leave school even  though his family was poor
  => Despite....
3. All the teachers love  him because his conduct is good
  => Because of...
4. The flight was not delayed though it  was foggy 
  => Despite...
5. We coudn't study because it was noisy.
  => Because of...
6. Even though it was cold, i went swimming
  => In spite of...
7. These students didn't arrive  late although there was the  traffic jam
  => Despite...
8. Mary can't sleep because  there was noise
  => Because of...
9. She didn't get ill though she worked very hard
  => In spite of...
10. His wife usually gives him a list because he often forgets things
  => Because of...
11. Though he had much experienceexperience, he didn't succeed in repairing the machine
  => Despite...
12. Though Kid has  failded so often, he has never been disappointed.
  => Despite...
13. Though i hadn't eaten anything for 24 hours, i didn't feel hungry
  => In spite of...
14. He ate all the fruits though they were green
  => He ate all the fruits despite...
15. He left school because his life  was hard
  => Because of...
16. Although he hadn't finished the paperpaper, he went to sleep 
  => Despite...
17. He is dismissed  because of being  late for work often
  => Because...
18. Because of driving too fast, he caused a serious accident 
  => Because...
19. Although the streets are narrownarrow, many people drive cars in this city
  => In spite of...
20. Because he got up early, he wasn't early late for the first train
  => Because of...