1. In a large mixing bowl, combine the flour, sugar, salt, and yeast.
2. Add the warm water and vegetable oil. Mix until a dough forms.
3. Knead the dough on a floured surface for about 10 minutes, until smooth and elastic.
4. Place the dough in a greased bowl, cover, and let it rise in a warm place for about 1 hour, or until doubled in size.
5. Punch down the dough and shape it into a loaf. Place it in a greased loaf pan.
6. Preheat the oven to 375°F (190°C). Let the dough rise in the pan for another 30 minutes.
7. Bake for 30 minutes, or until the bread is golden brown and sounds hollow when tapped.
8. Remove from the oven and let cool before slicing.