`5)` In spite of not being an intelligent student , Nam can learn very fast.

`6)` Despite the heavy rain,we still went to school.

`7)` Despite having a physical handicap , he has become a successful businessman.

`8)` Because the TV is cheap , my wife insists on buying it.

`9)` In spite of feeling tired , he stayed up to keep us company.

`10)` Because of studying hard,I passed the exam.

`11)` Although they didn't play well, they won the game.

`12)` Although the traffic was very bad, we arrived on time.

`13)` Because of Tom's carelessness,he lost the game.

`14)` Because of an accident,I was late.

`15)` Because of her bad grades , she failed the University entrance exam

5. Although Nam is not an intelligent student, he can learn very fast.
-> In spite of  not being an intelligent student, he can learn very fast
6. Although it was raining heavily, we still went toschool.
-> Despite the heavy rain,we still went to school.
7. Although he has a physical handicap, he has become a successful businessman.
-> Despite his physical handicap he becomes a successful businessman.
8.Because of the cheap price, my wife insists on buying the Tivi.
-> Because the price is cheap,my wife insists on buying the Tivi.
9. Although he felt tired, he stayed up to keep us company.
-> In spite of  feeling tired , he stayed up to keep us company.
10.Because I studied hard, I passed the exam.
-> Because of my hard work, I passed the exam.
11. They didn’t play well, but they won the game.
-> Although they didn't play well, they won the game.
12. Despite the very bad traffic, we arrived on time.
-> Although it was the bad traffic, I arrived on time.
13.Since he was careless, Tom lost the game.
->  Because of being careless, John lost his game.
14.Because there was an accident, I was late.
-> Because of an accident, I was late.
15.She failed the University entrance exam because her grades were bad.
-> Because of her grades were bad so she fell the University entrance exam.