单项选择题
The modern people like travelling now because （）
A．it can bring us more knowledge B．it can make us rich C．they have too much money D．it is a good idea
单项选择题 The Chinese saying means " （）".
单项选择题 We say Columbus made the world larger, that is to say （）
单项选择题 The people in ancient times couldn't travel too far away places because （）
