27. We haven’t settled the question of ____ it is necessary for him to study abroad.
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.
--- It shouldn’t take long to clear up after the party if we all volunteer to help. --- That’s right. _____________.