Q: Keywords: cross, key, take
What is a sentence that includes all these keywords?

A: Someone crosses to the desk, goes behind it, takes the key to cabin number twelve off the keyboard.

Q: Keywords: flight, traveler, wait
What is a sentence that includes all these keywords?

A: a traveler are waiting for his flight

Q: Keywords: motorcyclist, perform, wheelie
What is a sentence that includes all these keywords?

A:
A daredevil motorcyclist performs a wheelie with his legs over the handle bars.