1. Although Nam is not an intelligent student, he can learn very fast.
=> Despite being not intelligent, he can learn very fast.
2. Because Hoa was rich, she could buy that house.
=> Because of Hoa's richness, she could buy that house.
3. Because the rain was so heavy, I couldn't go to school.
=> Because of the heavy rain, I couldn't go to school.
4. His father asked him to go stay at home because he was sick.
=> Because of his sickness, his father asked him to go stay at home.
5. Because there was an accident, I was late.
=> Because of the accident, I was late.
6. She failed the University entrance exam because her grades were bad.
=> Because of her bad grades, she failed the University entrance exam.
7. Although he has a physical handicap, he has become a successful business man.
=> Despite having a physical handicap, he has become a successful business man.
8. Because I studied hard, I passed the exam.
=> Because of studying hard, I passed the exam.
9.Because Hoa was rich, she could buy that house.
=> Because of Hoa's richness, she could buy that house.
10.Although he has a physical handicap, he has become a successful business man.
=> Despite having a physical handicap, he has become a successful business man.