Read and complete the sentences with the words and phrases from Passage A.1.In the past, flying carpets and wind-fire wheels only ________ in myths or people's dreams.2.Nowadays, many travel tools better than them have become__________.3.That's why nowadays “being on wheels” no longer just means “____________”.4.In cities all over the world, new _________ give a unique view.5.And often, they might have a big __________ when they are most proud of their skills.6.But they are the results of human efforts to ______ their dreams.