Please choose the correct ending to complete the given sentence: Brushing teeth: The dog shakes the ladies hand. She then brushes the dogs teeth. She brushes her teeth, then the dogs then both together. the dog

Ending1: stands up on its head and then it throws its head back. Ending2: shakes the ladies hand again. Ending3: then frosts the woman with its lips. Ending4: do the dishes in the sink.

Answer format: ending1/ending2/ending3/ending4