_____ to sunlight for too much time, as the doctors say, will do harm to one’s skin.
Catherine, ____ the alarm clock for 6 o’clock, or you would oversleep and be late for the train.
She was over the age limit and ________, her application for the job was rejected.
After five years of preparation, Shanghai is presenting the world _______ many say is the greatest Special Olympics.
Scientists are trying to develop a special material, _______ they will make use of in space.
The education of _______young is always _______ hot and serious topic in modern society.