question: sustainable flooring: foundation for a green interior design
Capitalize this past sentence correctly.
A: Sustainable Flooring: Foundation for a Green Interior Design

question: it is time to stop poisoning our future with our doubt.
Capitalize this past sentence correctly.
A: It is time to stop poisoning our future with our doubt.

question: straight five consecutive cards of mixed suits.
Capitalize this past sentence correctly.
A: Straight Five consecutive cards of mixed suits.