单项选择题
A．A news item. B．A public announcement in the press, on TV, etc. C．One way to voice one's view. D．Public opinions.
A．Sure. B．Not very sure. C．Not at all. D．Probably.
A．a useless advertisement B．how to make an effective advertisement C．how the man lost and found his umbrella D．what the merchant did for the umbrella owner