阅读理解。 My name is Betty Sanders. I'm a telephoneoperator(话员), and work for a company. My jobis very interesting. I love it very much. I work fivedays a week, and my hours are from 9 o'clock to 5o'clock. I do a lot of things--I place long-distance(长途) calls for people; I answer questions, and Ihelp people when they are in trouble. Today, for example, I had an interesting experience(经历). At 11 o'clock this morning, I got a call from a man. I didn't know who he was. He was in trouble and I could tell that hewas worried about something. He gave me an address and asked me to send an ambulance(救护车)right away. I asked him if somebody was hurt, but he didn't answer my question. He told me he needed a doctor at once, so I said I'd call an ambulance for him but I still wanted toknow what was wrong. Then he said, 'Our keys are gone!' I didn't understand that! Whywould he need an ambulance just because he couldn't find his keys? Then I found out what the trouble was. The man and his wife left thecar keys on a coffee table and later theycouldn't find them. Their little boy Johnny wasplaying in the room, and they thought he hadswallowed them. But before I could help him, he told me hewouldn't need an ambulance any more. His wifefound the keys in her bag. They were there allthe time. 1. Betty Sanders works________. A. in a factory B. in a shop C. in a company D. in a hospital 2. She works ________. A. forty hours a week B. from 9 am to 4 pm C. from Monday to Saturday D. seven days a week 3. The man called Betty because A. he thought Betty was a doctor B. he had lost his keys C. he wanted to ask for an ambulance D. his son was ill 4. In fact,  his keys ________.' A. were swallowed by his little son B. were on a coffee table C. were left in the car D. were put in his wife's bag 5. From the passage we can see _________. A. Betty Sanders likes her work B. Betty's job is to place long-distance calls  for people C. the man' s little boy likes playing with  keys D. doctors can help people find keys