Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to replace a toilet flange [title] Place newspapers or towels on the ground adjacent to the bathroom. [step] You will place the toilet on these after you disconnect it from the flange. [title] Turn off the water supply to the toilet.

Ending1: [title] Disconnect the water supply hose. [title] Flush the toilet until it is empty. Ending2: [title] Situate the lid onto the toilet. [step] Conceal the screw securing the lid to the bowl with a piece of masking tape. Ending3: [step] To prevent any water from leaking into the toilet floor, shut off all water supply for the toilet bowl. [substeps] If this is your first time using the toilet but you still haven't located the location of a leak, refer to the owner's manual for directions. Ending4: [step] This will stop the urine from splashing or dribbling on the ground. [title] Turn the phone off again before exiting the cabinet.

Answer format: ending1/ending2/ending3/ending4