Liu Fang is a company CEO now, but she ____ as a teacher in a middle school for three years.
Don’t leave the matches or cigarettes on the table _______ reach of little children.
Teachers should keep students _______ a distance, but not _______ the distance.
AIDS is the biggest killer in the world, taking ________ lives each year than ________ disease.
The thunder _______ the little boy so much that he covered his cars.
The football player had ________ gift for football when he was a child. Now he is ________ second to none in the football field.