Ответ: While we were singing «Auld Land Syne»,Somebody lit a firework.While Mum was making the Christmas pudding, she put a coin into it.The dog took a hamburger while Dad was making a barbecue.Celia and Paul were going trick or treating when I saw them.When I met Celia and Paul in the street, they were wearing costumes of ghosts.Celia and Paul were exchanging Easter eggs when I brought chocolate bunnies for them.When the children were hanging greetings cards, Dad brought in the Christmas tree.