Please choose the correct ending to complete the given sentence: Hanging wallpaper: He re-wets the surface and uses a flat tool to remove any stubborn wall paper. He finally uses a sponge and soap water to clean the wall to remove any residual wall paper. he

Ending1: then uses a cleaning solution to smooth down the layer and shows the finished repair. Ending2: then uses a knife to cut off any remaining wall paper. Ending3: then uses a toothbrush to stain the underside of the wall paper before wiping it off. Ending4: shows how to apply primer to prep the wall for painting.

Answer format: ending1/ending2/ending3/ending4