单项选择题
A．Because are always shortages of goods. B．Because the workers are getting lower and lower pay. C．Because the government makes no interference. D．Because people demand more and better goods.
A．The government B．The cost of living C．The economist D．The bank
A．a production line where each worker does only a small part of work to complete a product B．a house where many cars could be built in a single day C．a place where Henry could limit himself to the few tools for the task D．a workshop where the Model T was first produced in 1913