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.

[Q]: Article: Cheaters called "pirates" often use camcorders and cell phones to make illegal copies of blockbusters in the local theater. These pirates then sell those recordings on the street or over the Internet for very low prices. Some share them for free. "It's unfair for people to pirate movies, " says 15-year-old Hadaia Azad Ezzulddin. Movie piracy "takes money out of the pockets of thousands of people in the movie industry," she notes. Victims include famous actors and directors as well as local theater owners and their employees. Hadaia came up with an idea that could help stop movie piracy. Hadaia's idea uses infrared light. This range of light is invisible to the human eye. It is visible, however, to many types of cameras. Theater owners could place small infrared lights on their movie screens. The lights would not disturb people watching the movie. It would, however, distort the recordings made by many types of cameras. To test her idea, Hadaia built a box with a movie screen inside. Then, she projected images on that screen through a hole in the box. She took recordings of those images, using nine different types of cameras. These included the types found in cell phones as well as camcorders. During some tests, she also turned on light emitting diodes , or LEDs. The LEDs were embedded in a certain place behind the movie screen. They gave out infrared light. Sure enough, she showed, a pirated movie included odd stripes or spots if it had been recorded while the LEDs were on. It might be possible to use the LEDs to flash the date and time on the movie screen. The information would then appear in the illegal recordings. Theater owners or police might use the information to track down the pirates. Cutting down on piracy might get more people into theaters to watch the real movie instead of an illegal copy. Six out of every ten films now produced aren't profitable. They don't make enough money to recover how much was spent to make and market them. Such a poor payback can discourage filmmakers from producing anything but the types expected to become blockbuster hits. It might also keep smaller theaters from showing a wider variety of movie types.
Answer: make illegal copies of movies unpleasant to see
[A]: Infrared lights are put on the movie screens to _ .

[Q]: Article: People living in the UK take quite a few holidays abroad and in this country each year.Choices made about where to go, how to get there and what to do while there can either benefit or harm the environment. While on holiday Many of the things you can do to the greener on holiday will be the same things you can do at home--but there are also some extra things too, like avoiding gifts made from endangered plants and animals.Here are some suggestions: *Making the most of locally produced food and drink, and local activities and attractions will support people in the area you are visiting and reduce the need for further environmental influence from transport; *Switching off any air conditioning, heating and lights will help reduce climate change effect; *Save water--some countries suffer from water shortages and saving water can help avoid damage to our natural habitats . Endangered species Some gifts and foods available in some countries can be made from endangered plants or animals.Check before you buy, but if you doubt, avoid animal and plant gifts.More details of the types of products to avoid and illegal trade hotspots can be found on the Souvenir Alert web page. Making a positive contribution to the place you are visiting There are ways in which your holiday can help support local people and the environment: *There are many opportunities to volunteer and help with projects that conserve and improve natural habitats; *When you are away, or if you are looking for somewhere to visit, you can support projects or attractions which protect wildlife, such as nature reserves and conservation projects.
Answer: go around on foot
[A]: According to the passage, we can _ to help reduce climate change effect.

[Q]: Article: My first visit to London was one and a half years ago. It was a wonderful trip. I stayed in the city for three weeks, and I had many impressions. I visited all the famous places. I'd like to tell you about some of the places I visited in this beautiful city. First, I went to the Tower of London, and I want to say that it is a very interesting historical place. I found out that a long time ago, it was a prison. Later it became a castle for the royal family. Or maybe it is the reverse; I'm not sure, but later they left this place and lived in Buckingham Palace and Kensington Palace. I also enjoyed visiting the House of Parliament and Westminster Abbey, two very popular places for tourists. They are very old and beautiful. The Abbey is built in a kind of Gothic style; it is fantastic. In London, you can also enjoy nature. There are many parks such as Hyde Park, Green Park, and Holland Park. These parks are wonderful green, quiet places where you can relax and escape the noise of the city. Trafalgar Square is a popular place for students and other young people. You will find lots of pigeons there. If you have time, you can feed them and they will be very happy. You can buy special food for them, but be careful! Tons of birds are going to surround you if you feed them. Another very special place in London that I like is St. Paul's Cathedral which was designed by Sir Christopher Wren. I also was impressed with the museums in London. They're very popular. I found them interesting because you can learn about the history of England. I had a wonderful time in London. I really liked it because it is a city that is rich in history.
Answer: recall his/her first travel to London
[A]:
The writer writes this passage to _ .