In a mixing bowl, combine warm water, yeast, and sugar. Let it sit for about 5 to 10 minutes until it becomes foamy.
In a separate bowl, mix together the flour and salt.
Once the yeast mixture is foamy, add it to the flour mixture along with the vegetable oil.
Stir until a dough begins to form. Then, knead the dough on a floured surface for about 8 to 10 minutes until it is smooth and elastic.
Place the kneaded dough in a lightly greased bowl. Cover it with plastic wrap or a clean towel. Let it rise in a warm area for about 1 hour, or until it has doubled in size.
Once risen, punch down the dough to release the air. Shape it into a loaf and place it in the greased loaf pan.
Cover it again and let it rise for another 30 minutes.
Preheat your oven to 350°F (175°C).
Bake the bread in the preheated oven for 30 minutes, or until the top is golden brown and the bread sounds hollow when tapped.
Let the bread cool in the pan for 10 minutes, then transfer it to a wire rack to cool completely before slicing.