Please choose the correct ending to complete the given sentence: Fixing the roof: A man grabs a tool and removes shingles from a roof by tapping a hammer on the tool. The man puts a metal tool on a shingle and shows a nail. the man

Ending1: puts a tool into a hole in the shingle and slams it shut. Ending2: hammers the nails into the metal piece on the shingle and cuts the metal. Ending3: grabs a pot and fills it with water and pour it on the shingle. Ending4: shows a tool with a hammer inside and continues hammering.

Answer format: ending1/ending2/ending3/ending4