at: home, school
on: the roof, the table, the wall, the farm
in: the house, the window, the bag, the forest, the country
under: the chair, the bridge, the table
by: the river, the lake, the park
Дополнительно: у предлога at также возможны сочетания at the cinema и at the street в зависимости от значения и контекста.