Q: Keywords: cloud, mountain, reflect
What is a sentence that includes all these keywords?

A: mountains and clouds reflected in a lake

Q: Keywords: block, cloud, frond, sun, tree
What is a sentence that includes all these keywords?

A: tropical storm clouds block out the sun as winds buffet the fronds of a palm tree

Q: Keywords: crowd, entertain, guitar
What is a sentence that includes all these keywords?

A:
A man is playing his guitar, entertaining the crowd.