【正确答案】 C

【答案解析】[听力原文]
Mr. Blue is a rich businessman. He had a nice shop in the Main Street of a small town. He sold diamond necklaces, watches, clocks and other such things. Most of the goods sold in his shop are very expensive. All went well for some years, and then Mr. Blue's shop was broken into at night twice in one month, and a lot of diamond necklaces were stolen each time. It made Mr. Blue very worried. He asked the police for help, but the police had still not succeeded in catching the thief three weeks later. So Mr. Blue decided that he would try to do something about it. He bought a camera, fixed it up in his shop so that it could photograph anyone who broke into at night, and put some very cheap diamond necklaces in front of it for the thief. A few nights later the thief came again, but he did not touch any of the cheap diamond necklaces that Mr. Blue had put out for him. He took the camera instead. It was worth $15,000.

单选题 Which sentence is true according to the passage?
A．The police caught the thief within three months.
B．The police had still not managed to catch the thief three weeks later.
C．The police caught the thief three weeks later.

【正确答案】 B

【答案解析】

单选题 Why did Mr. Blue buy a camera?
A．He wanted to photograph all the things in the shop.
B．He wanted to photograph anyone who broke into the shop at night.
C．He wanted to photograph his shop.