You have to keep on learning if you want to keep ______ with the development of modern science and technology.
Japan ______ travelers a chance to observe the people’s devotion to work, which willalways ______ the strongest impression on them.
He didn’t ______ the adventure seriously. As a result, he broke both legs ______ theinjuries to his face and hands.
The man insisted that he ______ nothing wrong and he ______ set free at once.
It’s high time that he ______ the business ______ to his son.
______ this job doesn’t pay very much, but ______ I can’t get another one.