单项选择题
A．better than they expected B．not as good as they wish C．both good and bad D．difficult to understand
A．Modem society only belongs to the young. B．Modem life has brought new problems to the old. C．Today's young people are happier than their parents. D．It is necessary to take better care of the old peopl
A．they still feel lonely B．they want to move to other places C．they have no time to look after the young people's children D．they like to live with their own brothers and sisters