__________ your timely warning, we would have been unaware of the danger.
Even on a cold day he prefers ______ out to play football ______ at home.
It was unwise of him to ______ the unreliable data in his speech.
—Would you mind giving your advice on how to improve our business management? —If you make ______ most of the equipment, there will be ______ rise in production.
Some people would rather ride bicycles as bicycle riding has ______ of the trouble of taking buses.
—I am afraid I can't return the book to you before Friday. — ______ .