Knock KnockWho’s there?Lucerne!Lucerne who?Lucerne some Posted on October 16, 2018October 16, 2008 by admin Knock KnockWho’s there?Lucerne!Lucerne who?Lucerne some maths today! Spread the love Related posts: Knock KnockWho’s there?Isabelle!Isabelle who?Isabelle necessary Knock Knock 107 Knock KnockWho’s there?Woody!Woody who?Woody you Yodeler