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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.

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
Solution: Researchers did experiments on kids in order to find out _ .
Why? It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment.

New input: Article: "I never expected that I would be so busy. Why can't there be 25 hours in a day?" complained Liu Ran in Hong Kong as mid-term exams were going on. The 18-year-old was Shandong Province's top scorer in this year's college entrance examination. After graduating from Tai'an No.1 High School, she chose the Chinese University of Hong Kong , although both Peking University and Tsinghua University promised her a place. "I want to experience a more international school and social life in Hong Kong. I'm majoring in journalism, so Hong Kong will surely help widen my horizons," Liu said. It is two months since Liu first set foot on Hong Kong. She missed home a lot at the beginning, because of the food and language problems. "The canteen offers mostly Western or Guangdong food, but it's convenient to cook for ourselves in our dorm if we like. People speak Cantonese and almost all classes are in English," Liu explained. Her English and Cantonese are now both improving, but she still needs more time to adapt to the new environment. "I'm happy that I made the right decision to study here. With a mix of the Eastern and Western cultures, there is so much to discover and learn," she said. Liu has 18 credit hours of classes every week and 23 non-credit hours every other week. She has signed up for four associations including the Chinese Language Debating Team and the drama club. Essays, book reports and presentations also take plenty of time to prepare. And , of course, there are various parties to attend. "I wasn't a party animal before, but that may be interesting part of college. I sense myself changing," Liu said.
Answer: the Chinese University of Hong Kong can widen her horizons
Solution:
Liu Ran chose the Chinese University of Hong Kong, because _ .