Public service ads, also PSAs, often _________ for free, _________ to educate people about health, safety or any other problem that affects public welfare.
At the ancient Olympics, all men, ________ had to compete wearing no clothes; while single women took part in their own separate competition, a festival _________Hera, the wife of Zeus.
--Why do you think ________ the Eagles went home, angry and bitter?
--_________ they didn’t win the tournament and because what mattered to them was victory.
The small boat was almost sunk by the dinosaurs which suddenly ________ to the surface, fighting each other, but fortunately the three men ________ get away.