Q: Keywords: bear, cub, public
What is a sentence that includes all these keywords?

A: bear cubs on show to the public ... mother on guard while babies play .

Q: Keywords: design, fingernail, paint, polish
What is a sentence that includes all these keywords?

A: A woman paints a clear coat of polish on one of her fingernails that is painted with a design.

Q: Keywords: aircraft, altitude, decrease
What is a sentence that includes all these keywords?

A:
the aircraft decreases altitude over the salt lake to make a landing