The professor said he could talk on _____ interested the audience.

It is the news ____ most parents of the hope that there is a safe and socially approved road to a kind of life they themselves have not had, but their children can.

There were many more people who got injured in the big fire than _______.

Thereweremanymorepeoplewhogotinjuredinthebigfirethan_______.

Generally speaking, the hard one works, _______.