Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions.
Now listen to the passage. What did the American government do when the country’s airline industry was in trouble
A．It took steps to restructure the industry. B．It went out to boost the competition of the industry. C．It helped the industry by offering tax preference. D．It provided the industry with cash and loan guarantees.