Part 1. Definition
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.
Part 2. 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
Answer: Researchers did experiments on kids in order to find out _ .
Explanation: It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment.
Part 3. Exercise
Article: The film The Tides of Kirawira, which won two prizes at a recent television festival, was made by Mark Deeble and Victoria Stone. The couple are inprefix = st1 /Englandto visit friends and family before heading back toTanzaniafor their next film. Their work takes them to some of the world's least-known areas but they still find themselves drawn back toEngland, particularly toCornwall, where their work and personal relationship developed. "We met in London when Mark was studying biology and I was at the Royal College of Art studying photography," says Victoria. "We both learned to dive at the same pool inLondonand went on diving weekends in the country. It was a terrible place, freezing cold, where we dived in wet suits full of holes. But that is where our relationship developed." After completing their studies they took part in the management of a conservation area in the mouth of the River Fal in Cornwall. "We were shocked. Nobody seemed to understand the river's ecological importance. So we thought, why don't we make a film to show people what a special place it is? Neither of us had any experience of filming but we took part-time jobs until we had enough cash to buy an underwater camera and some film." A television company agreed to provide money for the work and the film they produced about the underwater life of the River Fal was shown on television and won a number of prizes. By then, they both knew they wanted to work with wildlife in distant places around the world. Alkan Root, a famous East African wildlife film-maker, asked them to work for him. That was seven years ago and the job took them to the Serengeti to film crocodiles. Their films, Here Be Dragons andDevil Fish, were very successful. "We love Africa but we have to come back to Englandevery year," saysVictoria. "We need to return to see our friends and family. For us, Africa is temporary andEnglandmeans permanence. It's the difference between living in a tent inTanzaniaand a house inCornwall. We are lucky... we have the best of both worlds." 
 Answer: receive a prize for their new film
Answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Mark and Victoria have returned to England to   _  .