The experiment shows that proper amounts of exercise, if ______ regularly, can improve our health.
In __________ review off 44 studies, American researchers found that men and women who ate six key foods daily cut the risk of __________ heart disease by 76%. _______
Of all __________ reasons for my decision to become a university professor, my father’s advice was __________ most important one.
For him __________ stage is just __________ means of making a living.
According to __________ World Health Organization, health care plans are needed in all big cities to prevent __________ spread of AIDS.
Everywhere man has cut down __________ forests in order to grow crops, or to use __________ wood as fuel or as building material.