单项选择题
A．All the money on advertising was wasted. B．Not all the advertisements were well designed. C．All the managers knew about advertising then. D．Managers spent no money on advertising.
A．We can do without railways. B．Trains have much in common with motorcars and planes. C．Motorcars and planes are not as good as trains. D．Trains are as good as motorcars and planes.
A．At midnight. B．In the morning. C．When the car is turned off. D．When the neighbor’s son leaves for work.