. People have discovered a new source of energy. A. A new source of energy have been discovered by people. B. A new source of energy has discovered. C. A new source of energy has been discovered people. There is a cathedral and a university. There are five bridges over the River Tyne, which link Newcastle to the next town, Gateshead, where there is one of the biggest shopping centres. can we keep our teeth healthy? Firstly, we ought to visit our dentist twice a year. He can fill the small holes in our teeth before they destroy the teeth. He can examine our teeth to check that