It’s ______ trying to persuade him to change his mind because he never listens.
Massive amounts of information _____ available because of the current policy to promote the free flow of speech.
The professor put forward three issues, none of _____ we had ever done any research into before.
____ confidence, he behaved as if he had never been trained for this job.
The Irish who suffer from the economy depression will find they get _____ from the music show Riverdance.
Over the past decades, the ice cap melting rate _____ as a result of global warming.