Q: Keywords: choir, perform, soloist
What is a sentence that includes all these keywords?

A: A soloist performing with a choir.

Q: Keywords: airplane, cloud, runway
What is a sentence that includes all these keywords?

A: A large airplane is on a runway with clouds in the distance.

Q: Keywords: competition, competitor, cross, recur
What is a sentence that includes all these keywords?

A:
a competitor makes a proposal of marriage after crossing the finish line during recurring competition