5, because there was an accident, i was late

=>Because of an 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 handicap physical,he has become a successful business man

8, because of the cheap price,my wife insists on buying the TV

=>because the price is cheap,my wife insists on buying the TV

9,although it was raining heavily, we still went to school

=>despite the heavily rain, we still went to school

10,because i studied hard,i pass the exam

=>because of studying hard,i pass the exam

BECAUSE OF +N       ,S+V

                        VING