Please choose the correct ending to complete the given sentence: Fixing bicycle: A man is inside a work shop while he shows off a bike. he

Ending1: spins the tires and adjusts the chain. Ending2: is using spray paint to paint the motorcycle that he is working on. Ending3: makes repairs to a shoe, explaining it to the camera and added cement to it. Ending4: drops the bike and discusses what to do again.

Answer format: ending1/ending2/ending3/ending4