________ the right kind of training,these teenage soccer players may one day grow the international stars.
Willpower is a kind of quality, ________ is ________ it takes to do anything well.
________ nearly all behavior is learned behavior is a basic assumption ________ has been put forward by social scientists.
The British are not so familiar with different cultures and other ways of doing things, ________ is often the case in other countries.
________ some students are not aware of is ________ difficult life can be if they are not devoted to study.
________ you are supposed to do ________ you don't like a thing is change it. Don't complain.