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.

Let me give you an example: Article: Homework can put you in a badmood , and that might actually be a good thing. Researchers from the University of Plymouth in England doubted whether mood might affect the way kids learn. To find out the answer, they did two experiments with children. The first experiment tested 30 kids. Someshapes were hidden inside a different, larger picture. The kids had to find the small shapes while sitting in a room with either cheerful or sad music playing in the background. To test their mood, the scientists asked the kids to point to one of five faces, from happy to sad. Children who listened to cheerful music tended to point to the smiley faces while the others pointed to the unhappy ones. The researchers found that sad kids took at least a second less to find the small shapes. They also found an average of three or four more shapes. In the second experiment, 61 children watched one of two scenes from a film. One scene was happy, and the other was sad. Just like in the first experiment, kids who saw the sad scene acted better compared to the others. The researchers guessed that feeling down makes people more likely to focus on a problem or difficult situation. Not all scientists agree with them, however. Other studies argued that maybe, that cheerful music in the first experiment distracted kids from finding shapes. While scientists work on finding out the answers, it still might be wise to choose when to do your tasks according to your mood. After eating a delicious ice cream, for example, write an essay.
Answer: whether mood affects their learning ability
The answer to this example can be: Researchers did experiments on kids in order to find out _ .
Here is why: It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment.

OK. solve this:
Article: "Mum,what does it mean when someone tells you that they have a skeleton in the closet ?"Jessica asked. "A skeleton in the closet?"her mother paused thoughtfully. "Well, it' s something that you would rather not have anyone else know about. For example,if in the past,someone in Dad' s family had been arrested for stealing a horse,it would be 'a skeleton in his family' s closet'.He really wouldn' t want any neighbor to know about it." "Why pick on my family?" Jessica' s father said with anger. "Your family history isn' t so good,you know. Wasn' t your great-great-grandfather a prisoner who was transported to Australia for his crimes?" "Yes,but people these days say that you are not a real Australian unless your ancestors arrived as prisoners." "Gosh,sorry I asked. I think I understand now," Jessica cut in before things grew worse. After dinner,the house was very quiet. Jessica' s parents were still quite angry with each other. Her mother was ironing clothes and every now and then she glared at her husband,who hid behind his newspaper pretending to read. When she finished, she gathered the freshly pressed clothes in her arms and walked to Jessica' s closet. Just as she opened the door and reached in to hang a skirt,a bony arm stuck out from the dark depths and a bundle of white bones fell to the floor. Jessica' s mother sank into a faint ,waking only when Jessica put a cold, wet cloth on her forehead. She looked up to see the worried faces of her husband and daughter. "What happened?Where am I?" she asked. "You just destroyed the school' s skeleton,Mum," explained Jessica. "I brought it home to help me with my health project. I meant to tell you,but it seemed that as soon as I mentioned skeletons and closets,it caused a problem between you and Dad." Jessica looked in amazement as her parents began to laugh madly. "They' re both crazy," she thought.
Answer: a family secret
Answer:
According to Jessica' s mother ," a skeleton in the closet" means _ .