阅读理解。 Mary was an operator (接线员) of 911 in Los Angeles. One Thursday morning, she was surprised to get a call from a young child who said 'Mommy ill, Mommy ill' again and again. Mary hurried to find the address of the call. She called the police, and in a minute, the policemen and doctors arrived at the house. They broke the door open, and they couldn't believe their eyes. The little child was so young that maybe she could not walk! She was sitting beside her mother and holding her mother's hand. Tears (眼泪) were running down her face. The doctors gave the woman some medicine and soon she woke up. Later, she told people, 'Everyone was surprised that my daughter could call 911.One Monday I tried to teach her how to call 911, but she couldn't do it.' Mary was surprised, too. 'It's the first time I've seen a two-year-old child call 911.' 1. What did Mary do every day? [     ] A. She answered the telephone calls. B. She talked with the policemen and the doctors. C. She played with the children. D. She dealt with emergencies. (紧急情况) 2. How did she feel when she answered the little's girl's call? [     ] A. She was worried B. She was worry C. She was surprised D. She was happy. 3. How did the policemen and the doctors get into the house? [     ] A. They went in through the windows B. They broke the door open C. They didn't go in D. The woman was outside the house. They didn't need to go in. 4. How could the little girl learn to call 911? [     ] A. she learnt it by herself. B. she called it by chance. (偶然地) C. Her mother taught her one Monday D. Her mother often taught her. 5. How old was the little girl? [     ] A. She was only two years old. B. She was nine years old. C. She was five years old. D. She couldn't walk, so she must be less than one year old.