Q: Keywords: donut, flavor, variety
What is a sentence that includes all these keywords?

A: A box of donuts with a variety of flavors to choose from.

Q: Keywords: field, harvest, straw
What is a sentence that includes all these keywords?

A: a bale of straw in a field of stubble after harvest

Q: Keywords: builder, site, work
What is a sentence that includes all these keywords?

A:
a builder working on building construction site on the site of the former quarter