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In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.
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Article: You may think that inventions are far away from your everyday life. But in fact, almost everyone can invent. It's just that they do not recognize that their idea could be the start of an invention. Once inventors see their ideas have some practical value, they don't let them slip away. For example, the inventor of the dishwasher, American Josephine Cochrane, loved to give dinner parties. But she found it took too long to wash her dishes by hand and too many of them broke. She decided that a machine could do the job faster and with fewer mistakes. So, in 1886, she set out to make one for herself. Like Cochrane's, most inventions are created to solve a problem. So, the first and most important step is to find the problem. You can start by looking at what is wrong with things you use now. You can ask grandparents or neighbours if they remember ever saying: "I wish someone would invent something for..." Or you can look at people in different areas such as on the street, or at school. Then you might notice situations or things in need of improvement. Remember to record your ideas and work. This will help you develop your invention and protect it when it is completed. The next step is to think about possible solutions. An invention is a new way of solving a problem. So think of many, varied, and unusual ways. You can often come up with a solution for a problem by looking at it from a different angle or thinking about it in a new way. Example 1 -- instead of thinking of shoes as protecting your feet from the ground, think of using something to protect the ground from your feet. Example 2 -- instead of thinking about how you can carry oranges home from a store, think of how they can come to you by delivery or growing your own. Example 3 -- instead of experimenting with only one solution, can you put two or three solutions together, or arrange them in different orders? And if one solution doesn't work, can it be put to other uses? That was how yellow post-it notes (N) came about -- a "failed" adhesive experiment proved a weak adhesive had good uses too! After all, most inventions are not brand new. They do not come out of nowhere, but come out of things or ideas that already exist. And the hardest part of inventing, even for a lot of inventors, is coming up with a problem and finding a solution. Once you have an idea, you can always get help building your invention. This problem-solving technique can also work in your everyday lives. So, why not try it in your studies, in your relationship with others, or even in the way you look at the world?
Answer: that you can invent and how you will be able to do so
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The main idea of this story is _ .

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Article: Joke l: A man was sitting reading his papers when his wife hit him round the head with a frying pan. "What was that for?" the man asked. The wife replied, "That was for the piece of paper with the name Jenny on it I found in your pocket." The man then said, "When l was at the races last week Jenny was the name of the horse I bet on." The wife apologized and went on with the housework. Three days later the man was watching TV when his wife hit him on the head with an even bigger frying pan, knocking him unconscious. Upon regaining consciousness the man asked why she had hit again. Wife replied, "Your horse phoned." Joke 2: "Do you believe in life after death?" the boss asked one of his employees. "Yes, sir, " the new employee replied. "Well, then, that makes everything just fine, " the boss went on. "After you left early yesterday to go to your grandmother's funeral. she stopped in to see you!" Joke 3: "Oh, I am happy to see you, " the little boy said to his grandmother on his mother's side. "Now maybe daddy will do the trick he has been promising us. " The grandmother was curious. "What trick is that?" she asked. "I heard him tell mommy that he would climb the walls if you came to visit, " the little boy answered. Joke 4: A woman's husband had been slipping in and out of a coma for several months, yet she had stayed by his bedside every single day. One day, he signaled for her to come nearer. As she sat by him, he whispered, eyes full of tears, "You know what? You have been with me all through the bad times. When I got fired, you were there to support me. When my business failed, you were there. When I got shot, you were by my side. When we lost the house, you stayed right here. When my health started failing, you were still by my side... You know what Martha?" "What dear?" she gently asked, smiling as her heart began to fill with warmth. "I'm beginning to think you're bad luck..."
Answer: her husband's pocket money was lost without any reason
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The wife became angry suddenly in Joke 1 because _ .

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Article: Why do men die earlier than women? The latest research shows that the reason could be that men's hearts go into rapid decline when they reach middle age. The largest study of the effects of aging on the heart has found that women's longevity may be linked to the fact that their hearts do not lose their pumping power with age. "We have found that the power of the male heart falls by 20-25 percent between 18 and 70 years of age," "Within the heart there are millions of cells that enable it to beat. Between the ages of 20 and 70 , one-third of those cells die and are not replaced in men," . What surprises scientists is that the female heart sees very little loss of these cells. "This gender difference might just explain why women live longer than men," said Goldspink. The team has yet to find why aging takes a greater toll on the male heart, said Goldspink.. The good news is that men can improve the health of their heart with regular exercise.
Answer: hearts and long life
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The passage mainly talks about _ .