The horse is ___ useful animal.
______ more and more people may turn to the Internet for the latest news, it is unlikely that the newspaper will disappear.
______ 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.