Matching Pairs DO YOU KNOW? cz.5Online version Find answers to the questions by clicking the right boxes. by Monika Wójcik 1 When was the first English dictionary written? 2 How many colours can crocodiles distinct? 3 Which animals are the only mammals that can fly? 4 Do horses and giraffes sleep standing up? 5 When was the tea bag invented? 6 When was the $ sign introduced? 7 When were plastic bottles first used for soft drinks? 8 Can whales swim backwards? 9 Are camels born with humps? 10 How much water can an elephant's trunk hold? Yes No No in 1755 bats None. They are colour blind. over 5 litres in 1970 in 1908 in 1788