单项选择题
The reason why people like to fly today is that （）
A．it is interesting B．it is cheaper than to go in any other way C．it can cross the wide oceans D．it takes less time
单项选择题 The modern people like travelling now because（）
单项选择题 We say Columbus made the world larger, that is to say （）
单项选择题 The Chinese saying means"（）"
