Please choose the correct ending to complete the given sentence: Laying tile: Another person uses a piece of wood to level the concrete. A water mixture is poured on the concrete, it is scored and tiles are pounded on top. a person

Ending1: puts in cardboard and it covers the entire ground of the roofing ring. Ending2: is then sprayed with the water while the concrete remains. Ending3: is in the basement of the house. Ending4: cleans the tiles with a cloth.

Answer format: ending1/ending2/ending3/ending4