I learned from my book that it was nothing but ten years of hard work that ______ his success in business.

—May I use your dictionary? I want to consult it．—It’s over there．____．

Each player tried his best to ______ the game.

27. If we ________ to him, he will make further demands.

— What question did the teacher ask just now?— She asked how well this material     electricity or heat.