What they need ______ enough money, while what we need ______ enough workers.
Circus tigers, although they have been tamed, can _____ attack their trainer.
The _____ of his clothes indicated too clearly that he had been playing football.
When the entire class worked together they finished the project _____.
Paper making began in China and from there it _____ to North Africa and Europe.
Children who are over-protected by their parents may become _____.