Matching Pairs DO YOU KNOW? cz.4Online version Match the questions to their answers by clicking the right boxes by Monika Wójcik 1 When was the electric toothbrush invented? 2 Where does Christmas tree originate from? 3 Apart from cars do Porsche also make tractors? 4 Do people's tongues differ? 5 How many teeth do African elephants have? 6 which animals are faster? Sharks or dolphins? 7 When do you burn more calories: while sleeping or while watching television? 8 Where was the Titanic built? 9 How many rooms are there in Buckingham Palace? 10 What is the coloured part of human eye called? Yes from Germany while sleeping the iris in 1939 Yes, everyone has a unique tongue print. in Belfast sharks four over 600