Q: Keywords: boxer, match, poster
What is a sentence that includes all these keywords?

A: the boxer studying a poster announcing his match against boxer

Q: Keywords: mark, match, pitch
What is a sentence that includes all these keywords?

A: the pitch is marked out before the match

Q: Keywords: operate, shop, system
What is a sentence that includes all these keywords?

A:
people try computers carrying operating system software the new operating system at an electric shop