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: Lying on his sickbed in hospital, all 86-year-old Lin Ruiming can do is stare out at a tiny part of sky through the small window. The old man used to ride his motorbike through the busy streets of downtown Beijing. All the while he could only dream of touring the world. He has been suffering from terminal lymphoma since February. As a last gift, his granddaughter,Lin Yifan,asked China's Internet population to give her grandfather a shot at globetrotting . Last week, Lin Ruiming's _ from Sydney Harbor, Australia, to the River Thames in London, UK, and even to a volcano in Auckland, New Zealand. Lin Yifan, 29, had promised to paint a portrait of her grandfather, but had almost forgotten her word until the old man got ill. "I had put off the painting for many years because I believed I would have plenty of time to do it," she said. She spent one evening last week working on a portrait, based on a photo taken on her grandfather's birthday last year. She posted the portrait on Sina Weibo, and called for Web users to take photos with the portrait in different locations and send them to her on May 11.Over the following five days she received about 20,000 photos, most of which were sent by people she had never met. She says that her grandfather, while too weak to view all the photos, has said that he is happy. "Thanks to all these helpers, I have become a celebrity around the world," the old man joked.
Answer: she believed she could do it anytime

SOLUTION: Lin Yifan put off painting the portrait mainly because _ .

PROBLEM: Article: Australian sleep researchers have developed a set of hi-tech "sunglasses", described as the world's first "time control" glasses, which can imitate sunlight patterns. The team, from Flinders University, in Adelaide, says the glasses send out a soft green glow that helps a traveller adapt to changing sleep patterns and time zones in "small steps". It targets a part of the brain that regulates the human body-clock, by sending signals to the rest of the body that help it slowly realise it is in a different area of the world. It has been suggested the device, called the "Re-Timer", is currently the only wearable body clock adjustment system commercially available. Scientists say the device, officially launched in South Australia, can help ridf the negative effects of long-timel travel and bring new relief to insomnia sufferers, shift workers and even teenagers. "The light from Re-Timer stimulates the part of the brain responsible for regulating the 24-hour body clock," said Prof Leon Lack, its chief inventor. Extensive research has shown that green light is one of the most effective wavelengths for influencing the body clock. The battery-powered device, which retail for PS162 in Britain, then sends signals that cause the production of hormones and daily cycles known as circadian rhythms . Those people who want to sleep peacefully, but wake earlier, should wear it for 50 minutes in the morning for three days. Those who want a lie- in, should wear it for the same time before bed to delay the body clock. The device, which is powered by an inbuilt rechargeable battery, can also be worn as sunglasses during daily tasks such as reading or using a computer. "The glasses have been designed to be user friendly and comfortable to wear so people can go about their normal activities wearing them at work or at home," he said, adding they had been designed based on 25 years of university research. It is estimated that up to 94 per cent of long-time travellers suffer from jet lag because the body becomes confused to travelling through different time zones. So the glasses are good news to them. It uses the outside world as indicators as to whether it should be awake or asleep including factors such as light, silence or noise. Airlines are said to be seeking a "silver bullet" for the tiredness and confusion that often follow a long-timel flight and are in discussions to buy the device.
Answer: motivating part of the brain

SOLUTION: The "time control" glasses work by _ .

PROBLEM: Article: If you are looking for the place that has everything, there ' s only one place to visit, and that's New York. It's a whole world in a city. The World Of Theatre: All of New York is. And it begins with Broadway. Where else can you find so many hit shows in one place? Only in New York! The World Of Music: Spend an evening with Beethoven at Lincoln Center. Swing to the great Jazz of Greenwich Village. Or rock yourself silly at the hottest dance spots found anywhere. The World Of Art: From _ to Picasso. From Egyptian tombs to Indian Teepees. Whatever kind of art you like, you'11 find it in New York. The World Of Fine Dining : Whether it' s roast Beijing duck in China-town, lasagna in little Italy, or the finest French coq au vin found anywhere, there's a world of great taste waiting for you in New York. The World Of Sights: What other city has a statue of Liberty ? A Rocketfeiler center? Or a Bronx zoo? Where else can you take a horse drawing carriage through Central Park, only in New York!
Answer: painter

SOLUTION:
From the text we know that the word Rembrand is most likely the name of a famous _ .