... (prisoner)at the seaside / at seain the river / the lake / the sea / the oceanat the top of the page / of + N24at the end of the roadat the corner of the street in the corner of the roomat the ... etcPattern 4: at + the + back, bottom, end, front, and top + of (different parts of a place).• Mrs. Castle was waiting at the bottom of the stairs.• They escaped by a window at the back of the house.• ... televisionin the sky, the river, the water, the mountainson the farm / on the beachin a row on the left, on the rightin Oxford Street/ in the street on the way (enroute)In the corner (of the room)...