It was ______ who did it, but it was _______ that we are talking about.
________ all of them are strong candidates, only one will be chosen for the post.
Nowadays people are more concerned about the environment __________ they live.
Tony lent me the money,__________ that I'd do as much for him.
When the building was completed, he paid __________ the workers.
—I love the Internet. I've come to know many friends on the Internet. —__________. Few of them would become your real friends.