Please choose the correct ending to complete the given sentence: Health: [header] How to flatten a box [title] Place the box on a flat work surface. [step] Turn it upside down so that the fixed base is facing up. [title] Remove any tape that might be holding the box together.

Ending1: [step] If you feel that you are not throwing the box off, remove the tape holding it in place. [title] Lay out a piece of cardboard over the box to flatten it. Ending2: [step] If it is a flat type box, simply stick the front of the box on your work surface. Use a clean, non-slip cloth, such as a styrofoam, to hold the box in place. Ending3: [step] If any tape remains, your box is irreparably damaged. If you cannot get the lid off of the box, or if you cannot reach around the box to unlatch it, then tape the lid. Ending4: [step] In some cases you may be able to simply lift the tape and pull it across but that isn't always easy to do and if you're doing bulk boxes, it's often impractical. Instead : [substeps] Slide a scissor blade, box cutter or a craft knife through tape.

Answer format: ending1/ending2/ending3/ending4