Please choose the correct ending to complete the given sentence: Fixing bicycle: He turns the bike upside down to look at the tire. He takes a nut off of the wheel to get the tire off. he

Ending1: uses a tool to get the tire off of the wheel. Ending2: puts the nut back on and swings the bike back onto the track while continuing to show off the tire. Ending3: takes a shine brush to the tire and smoothies over the rubber. Ending4: takes the rubber from the tire and starts to tighten the nut.

Answer format: ending1/ending2/ending3/ending4