Озаглавить текст: а) united states b) spain c) australia a recent report showed that 60 per cent of adults here are over-weight, at least 40 per cent are completely sedentary, and 20 per cent do enough exercise."everyone knows why we have the problem", says a former basketball star. "we're a nation who sit around and watch television too much". the quilt is enormous, and as a result there is a billion dollar market in diet books, aerobics videos, and all kinds of exercise machines. but buying the exercise bike doesn't keep you fit. you actually have to use it.