1. In a large mixing bowl, combine the flour, sugar, salt, and dried rosemary.
2. In a separate bowl, mix the warm water, olive oil, and yeast. Let it sit for 5 minutes until it becomes frothy.
3. Pour the yeast mixture into the dry ingredients and mix until a dough forms.
4. Knead the dough on a floured surface for about 10 minutes until smooth and elastic.
5. 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.
6. Preheat the oven to 375°F (190°C).
7. Punch down the dough, shape it into a loaf, and place it on a baking sheet.
8. Bake for 25 minutes or until the bread is golden brown and sounds hollow when tapped.
9. Let the bread cool on a wire rack before slicing.