_ you _ ( believe) in ghosts? Ghosts ... (live) everywhere and they ... (Be) invisible. Well, let me tell you what ... (Happen) to me last year. I ... (Sleep) soundly in my warm, cozy bed, when all of a sudden i ... (Hear) a strange sound. What ... (Be) that? I ..( be) scared. Maybe it was my dog Morty making that noise. But no, Morty ... (Lie) right outside my bedroom door on favourite rug. He ... even ... (Snore) loundly. Someone ... (Knock) on the front door.