--- I can’t find my raincoat. I hung it behind the door.--- I saw Peter going away with _____, but I’m not sure whether it’s yours.
Before going abroad he devoted all he could _______ his oral English.
He spent every minute he could _____ spoken English.
He ran as fast as he could _____ to catch the early bus.
Everyone in our class was working hard and doing what we could _______ a good college.
The wild flowers looked like a soft orange blanket _____ the desert.