Adverb clause of reason :
1.They like him because he is kind.
➝Because of
2. I can't sleep because it is cold
➝
3. We came late because there was a traffic jam
➝
4. She went to bed early because she felt tired
➝
5. The test is difficult, so we can't do it
➝
6. They đin't go for a picnic because there was a storm
➝
7. I can't study because it is noisy outside
➝
8. All the teacher love him because his conduct is good
➝
9. Because she didn't get up early, she missedthe first bus
➝
10. Because there was a strike, the workers stopped working
➝
11. We couldn't drive because the streets are crowded
➝
12. She worked very hard to earn a lot of money because her mother was sick
➝
13. She didn't go to school because she was sick
➝
14. Because it snowed continuously, we couldn't go out
➝
15. The accident happened because the driver was careless
➝
16. Because the door was broken, we decied to fix it
➝
17. Because my friend was absent, I must copy all lesson for him
➝
18. Although she was clever, she didn't succeed
➝ In spite of
19. Although my grandfather is cold, he walks to the pagoda every day
➝
20. He is unhappy though he has good salary
➝