单项选择题
A．the customer B．the producer C．increased sales D．reduced prices
A．who think too much of the dark side of life B．who regret giving up their career halfway C．who think a lot without making a decision D．who are full of imagination even upon death
A．the wonder land one often dreams about B．the bright future that one is looking forward to C．the state of uncertainty before one's final goal is reached D．a world that exists only in one's imagination