In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.
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Question: Article: Deng Nannan, 15, used to hate drinking milk for breakfast. But she had to drink it because her mom, as well as many others, said that milk was good for her growing body. Besides, milk and bread made up a convenient diet that saved her parents a lot of time after Deng entered junior school and had to arrive at school early in the morning. After that, Mengniu and Yili became her favorite brands of morning milk and yoghurt after dinner. However, she has been forced to change her diet since the recent milk crisis. Many best-selling milk brands such as Mengniu, Yili and Bright were discovered to contain melamine , which is usually used to make plastic. The bad milk products have sickened more than 5,300 babies and killed four. "I shifted to rice porridge," she said. "My mom has to get up at 5:50 am to prepare my breakfast and make sure that it cools down when I get up." Deng has become addicted to milk, so she doesn't quite enjoy her morning meal these days although she knows that it's a tiring job for her working mom. "I'll turn back to Mengniu and Yili when they finally improve their products," she said. However, right now Deng's mom tries to adjust her eating habits by cooking different foods. Besides rice porridge, noodles, egg soup and soybean milk are prepared as her breakfast.
Answer: Because milk becomes more and more expensive.

Answer: According to the passage, why do some students stop drinking milk?

Question: Article: My father left me a treasure when he died. It wasn't a big house or a car. It wasn't cash or gold. In the eyes of the world my father died a poor man. He was a simple mechanic who worked hard to support his family. My father's treasure, rather, was in a thousand wonderful memories that he gave me over the course of his life. One particular one stood out in my mind today. I was just a boy playing in the backyard of a friend's house while my father spent the afternoon under the hood of an old car, trying to get it running again. It seemed to take hours and I wasn't sure whether he could bring the ancient car back to life again this time. At long last, though, he closed the hood and turned the key in the ignition . There was a sweet smile of satisfaction on his face as the engine started. There was a twinkle of joy in his eye when he shook his head. And there was a quiet hum of happiness in his voice as we drove back home that day. This memory made a home in my heart and became a priceless pearl for my soul to cherish. Time and time again, my father showed me that a kind life, a giving life and a heavenly life was created one choice at a time. Not all of his choices were the right ones, but most of them were. He did the best he could. He lived the best he could. And he helped to bring out the best in me, too. He once said to me, "It is lucky that all of your choices are driven by love and inspired by joy." As I look back into those memories my father left me, I realize that each one of them inspired me to live and to love. May all of your choices bring memories of happiness to those around you!
Answer: Memories of his father and himself.

Answer: What was the most precious thing the author's father passed on to him?

Question: Article: Here is an astonishing and signficant fact:Mental work alone can't make us tired. It sounds absurd. But a few years ago, scientists tried to find out how long the human could labor without reaching a stage of fatigue . To the amazement of these scientists, they discovered thett blood passing through the brain, when it is active, shows no fatigue at all! If we took a drop of blood from a day labourer, we could find it full of fatigue toxins and fatigue products. But if we took blood from the brain of Albert Einstein, it would show no fatigue toxing at the end of the day. So far as the brain is concerned, it can work as well and swiftly at the end of eight or even twelve hours f efforts as at the beginning. The brain is totally tireless. So what makes us tired. Some scientists declare that most of our fatigue come from our mental and emotional attitudes. One of England's most outstanding scientists. J. A. Hadfield,says,"The greater part of the fatigue from which we suffer is of mental origin. In fact,fatigue of purely physical origin is rare." Dr. Brill, a famous American scientist, goes even further. He declares,"One hundred percent of the fatigue of a sitting worker in good health is due to emotional problems." What kinds of emotions make sitting workers tired?Joy?Satifaction?No!A feeling of being bored,anger,anxiety,tenseness,worry,a feeling of nt being appreciated---those are emotions that tire sitting workers.Hard work by itself seldom causes fatigue.We get tired because our emotions produce nervousness in the body.
Answer: A mental worker's blood was filled with fatigue toxins.

Answer:
What surprised the scientists a few years ago?