Please choose the correct ending to complete the given sentence: Fixing the roof: A wall is shown, covered in hanging tools. A man is in a workshop, talking about roofing shingles. he

Ending1: demonstrates how to apply glue, tile, and then hammer and nail the tiles into place. Ending2: tries to try to insert the metal nails back into the concrete block. Ending3: puts shingles down on the roof, then arranges them to be added to the roof. Ending4: applies layer after layer, barely touching each one before slipping the tool into made holes in the roof.

Answer format: ending1/ending2/ending3/ending4