question: 6. where would you like to be?
Capitalize this past sentence correctly.
A: 6. Where would you like to be?

question: at the same time, the shape of the ribs contributes to the machine having excellent depth-holding characteristics, as it is supported on a wide track.
Capitalize this past sentence correctly.
A: At the same time, the shape of the ribs contributes to the machine having excellent depth-holding characteristics, as it is supported on a wide track.

question: chemicals: accumulation of chemicals from everyday products, e.g. brominated flame retardants, pcb, and dioxin.
Capitalize this past sentence correctly.
A: Chemicals: Accumulation of chemicals from everyday products, e.g. brominated flame retardants, PCB, and dioxin.