Our teacher has _________ some very difficult questions to ask us.
______ strong and powerful China will certainly benefit ______ whole world.
She refused to follow our advice on the job, _______ it would have a great effect on her career.
She said she was unlucky _______ the train, and had to spend another day here.
Their family business has expanded enormously, while ours, _______, has declined.
—Excuse me, could you tell me the way to _______ Uncle John’s?—Sorry, we don’t have _______ John here.