question: the material plays an important role for choosing boxing gloves.
Capitalize this past sentence correctly.
A: The material plays an important role for choosing boxing gloves.

question: his grandfather died two years later and william came back to live with his mother, but she died shortly after his return and he was sent to live with his father's brothers.
Capitalize this past sentence correctly.
A: His grandfather died two years later and William came back to live with his mother, but she died shortly after his return and he was sent to live with his father's brothers.

question: i’m sitting next to a swede in the aircraft.
Capitalize this past sentence correctly.
A: I’m sitting next to a Swede in the aircraft.