Please choose the correct ending to complete the given sentence: Doing kickboxing: A man in a red shirt, black gym shorts and boxing gloves begins talking to the camera. After, the man does a series of punches and begins to hit the bag excessively. for his next technique

Ending1: , he holds the bag and starts to do several knee kicks to it. Ending2: , the bag appears to have weight and he misses while punching it. Ending3: , he knocks down the punching bag. Ending4: , the man grabs the bag and follow it with a series of punches.

Answer format: ending1/ending2/ending3/ending4