A、She was driving along the country road. B、She was lying in a hospital bed. C、She was lying near a lonely road, trembling. D、Sh

Some years ago, an American policeman found a woman lying near a lonely road. She did not appear to have had an accident, but she was trembling and clearly in a state of shock, so he rushed her to the nearest hospital. She began to tell the doctor on duty a story which was astonishing in all respects. She had been driving along a country road when she was stopped by a flying saucer landing in front of her. She had been forced to leave the car and enter the flying saucer by some creatures.
    These creatures looked like human beings, and could easily make themselves understood although they could not speak. It was as though they could read her thoughts and she could read theirs. They treated her politely and allowed her to leave after carrying out a number of tests on her. As she otherwise seemed to be normal, the doctor decided that she was probably suffering from the side effects of some drug. The woman insisted on being allowed to go home, but when she gave her address, it was in a town over a thousand miles from the hospital. The police then started to make inquiries. They soon discovered that there was already a search going on for the woman, whose husband had reported that she had disappeared. Her car had been found with the driver’s door open and the engine running. In front of the car the surface of the road had been completely destroyed, not by an explosion or anything of that kind, but as though a large, circular, white-hot object had burnt through it.
Questions 16 to 18 are based on the passage you have just heard.
16. What was the woman doing when the policeman found her?
17. What happened to the woman according to her account?
18. What do we learn from the passage?