Please choose the correct ending to complete the given sentence: Fixing bicycle: A bike is seen upside down in a shop. a man

Ending1: lifts the bike up to his chest. Ending2: is standing on the bike and going through small items on the bike. Ending3: shows how to remove a tire. Ending4: puts a tire onto the bike's handlebar.

Answer format: ending1/ending2/ending3/ending4