TASK 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.
PROBLEM: Article: You are standing under the most famous neon lights in the centre of prefix = st1 /London, waiting to cross the road. Suddenly the traffic stops. You hear the distant sounds of cheering, clapping and shouting. Then, like a multi-color1ed train, 2, 000 people with wheels on their feet zoom past you. You have just witnessed the London Skate, a twice weekly roller-skate event that attracts people in their hundreds and thousands London Skate is a completely free tour of the streets ofLondon--the only condition is that you go along on roller-skates. It lasts between two and three hours and by the end of it you have skated between 10 and 12 miles. The skate snakes sound the streets of Londonalong several different routes. Many of the routes pass by tourist attractions such asBuckinghamPalaceand Big Ben. Marshals go ahead of the group, stopping the traffic so that people can skate as safely as possible. Everyone is welcome to take part and people from the age of 4 to 63 years old join the fun. "I love it very much, it is amazing. It feels just like a carnival .", said Celeste Beverage regular skater. Roller-skating is really _ across Europe andAmerica. It is a very good way to keep fit and can be practised anywhere there is a smooth surface. Many big cities in Western Europe and in theUSnow have a regular group skating event. The biggest skates take place in Paris and Munichand tens of thousands of fans show up on warm evenings. "Roller-skating is taking over the world," said Julian Grenoble, a 25-year-old ski shop employee fromLondon. Grenoble went to the Paris-Roller(Paris skate) regularly until he moved toBritain. "It's so exciting to skate in Pairs. Everyone skates so fast and puts in their best efforts!" he said. The Paris Roller is well known because of the huge attendance, the presence of marshals and the police protection. Parisis a great city for roller-skating because of its long wide streets and smooth surfaces. Roller-skating is also becoming more popular inChinaamong young people and children. Skating fans' favorite places to practice inChinaare big squares.
Answer: roller-skating in big cities

SOLUTION: This article mainly talks about _ .

PROBLEM: Article: If you're not a fan of KFC's famous Double Down hot dog, don't worry! KFC in the UK is developing a new treat: an edible coffee cup. The product is still in the trial stage and not yet available for purchase, but according to a KFC news report, the treat is made from a unique biscuit, wrapped in sugar paper, and lined with a layer of heat-resistant white chocolate, which helps keep the coffee hot. As you drink the coffee in the cup, the white chocolate lining will begin to melt slowly, and the biscuit begins to soften. But it doesn't end there --- the cups are not only edible, they also have a pleasant smell. KFC partnered with The Robin Collective, an experimental food company, to make the cups with coconut sun cream, freshly cut grass and wild flowers scents. According to the news report, that's because the scents arouse the positive memories we associate with warm weather, sunshine and summer holidays. Sounds ... delicious? A manager at KFC said, "We have been experimenting with the edible packaging in limited quantities to see if it could be a popular product in the market. We believe if our customers occasionally like to have their cake and eat it, why wouldn't they want to have their cup and eat it instead! " The edible cups will only be available in the UK when it comes out. According to a spokesperson for KFC, there are at present no plans to bring it to the U.S. yet.
Answer: prevent the heat giving off soon

SOLUTION: The cup is lined with a layer of white chocolate to _ .

PROBLEM: Article: Lots of kids go through times when they'd like to change their hair. Often, it's girls who are most concerned , but boys may be interested in how their hair looks, too. Sometimes hair will change as you get older----all by itself----when you go through puberty . Maybe it used to be lighter and now it's darker. Or maybe it's oilier than it used to be, and now you need to wash it more. It's also normal, as you're getting older, to notice your appearance more often. You might suddenly decide you want a hairstyle like other kids at school have. But some styles and looks require chemical treatments and long hours in the chair at the hair salon. Some people dye their hair a different color, get a bunch of braids ,or make their hair straight when it's curly . Are these treatments OK for kids? That's something you should discuss with your parents. At any age, any chemical or heat applied to the hair can damage the hair or cause it to break off. Any styling that pulls hard on the hair can also hurt the scalp or cause hair loss. Styling tools, such as curling irons and straightening irons, get very hot and can cause burns. And chemicals used to color, curl, or straighten hair can be very harmful if they get into your eyes or onto your skin.
Answer: not only girls but also boys

SOLUTION:
The word "kid"in this passage refers to _ .