单项选择题
A．Silent reading had not been discovered. B．There were few places available for private reading. C．Few people could read for themselves. D．People relied on reading for entertainment.
A．The more we read and learn, the more ignorant we are. B．The more we read and learn, the more learned we are. C．The more we read and learn, the more confused we will be. D．The more we read and learn, the more snobbish we becom
A．They are used to express feelings only. B．They can not be written down. C．They are simply sounds. D．They are mysterious.