Everything comes with ________price; there is no such _______ thing as free lunch in the world.
We passed through some beautiful _______ on our journey through the Lake District.
It was _______ you had done _______ made it possible for you to improve your English.
Your friends were all worried about _______ you were sick.
--Thank God you are safe! ---I stepped back , just _________ to avoid the racing car.
-- A medical team was sent to Japan by air five hours ago. ---So they_____ have arrived by now. The flight usually takes four hours or so.