Please choose the correct ending to complete the given sentence: Doing crunches: The boxer then begins to lay back on the machine and does crunches while chewing gum and making air fist. when

Ending1: he's done chewing, he throws the purple ball on to the ground near the chair, as well as bottom right behind it. Ending2: he is finished, the boxers that had joined them in the gym begin lifting weights under one arm. Ending3: finished, he stands up to adjust his shorts and places his knees on a a set of white towels before using a wheel with two handles on it to continue his exercise. Ending4: he is done he gets down off of the machine and wipes his mouth on his sleeve and shows the white enamel spoon.

Answer format: ending1/ending2/ending3/ending4