【单选题】听力原文: John had a pair of old shoes which had brought him much trouble, so he decided to throw them away. He went to the rubbish area outside the city and threw his old shoes into it. 'Now they can bri...
A.
Because they were worn out and couldn't be worn any longer.
B.
Because he wanted to test his dog's ability to get things back.
【单选题】John Jones has decided to go into the business of pro-ducing and selling boats. In order to begin this venture,he must invest $10 million in a boat production plant.The cost to produce each boat will ...