Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to address a large envelope [title] Put the envelope flap-side down. [step] Your envelope probably has a long flap that clasps or seals the contents inside. You don't want your address to be written on the same side as this flap.

Ending1: If you have taken out the envelope flap entirely, put it down so that it's staggered across the envelope. [substeps] Try to place the envelope flap-side down so that you can get a good idea of how wide it is, and to place it as close to the body of the envelope as possible. Ending2: [title] Position the address in the center of the envelope. [step] While you don't need to take out a ruler and find the true center of the envelope, try to be as accurate as possible. Ending3: [title] Fold or make creases on the envelope so they look uneven. [step] Fold the flap down the center and crease it so it stays in place. Ending4: It simply has to be made of the same material so that it will stay securely in the envelope. Find the flap-side on the envelope and poke it through! .

Answer format: ending1/ending2/ending3/ending4