We work together to achieve our common purpose: _________world that is safer, cleaner and healthier than ________ one we found.
"The interest ____ be divided into five parts, according to the agreement made by both sides." declared the judge.
A good teacher must be able to hold his students’ attention ____ he reaches the end of the class.
Though the novel had a happy ending, the readers were left ____.
I would appreciate ______ very much if you could give me some suggestions.
Good news! The price of all those second-hand goods is ______ before.