Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to install flooring [title] Make sure your floor is level. [step] Using a level, check your floor for bumps or low spots. If you are replacing old flooring, then the floor will usually be level, but if you are installing a floor in a new house you need to be sure the surface is flat.

Ending1: [substeps] Ask a kid at a home improvement store what level your area will need to be and check it regularly. [title] Measure the area for any curved or uneven spots on your floor. Ending2: [substeps] Check your ceiling, as there will likely be a lot of seating on the floor. If you are replacing floors for firewood, then check for creaky floorboards. Ending3: [substeps] Use a hammer and chisel to grind down high spots. Use a leveling compound to fill in any low spots. Ending4: [substeps] Look at all the cracks, holes, and imperfections in your floor. Make a note of any low spots you are uncertain on or are not sure you have any problems with.

Answer format: ending1/ending2/ending3/ending4