You are going to read an article about the Channel Tunnel, which was recognised as one of the "Seven Wonders of the Modern World" by the American Society of Civil Engineers. Some words are missing from the text. Your task is to choose the most appropriate word from the list for each gap in the text. You can use each word only once. There are three extra words that you do not need to use. When you have entered all your answers, cick on the button "Check answers". If you make a mistake, please try again until all your answers are correct.