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Read the following article and select the best answer. Article: Perhaps the most extraordinary building put up in the nineteenth century was the Crystal Palace which was built in Hyde Park for the Great Exhibition of 1851. The Crystal Palace was different from all the other buildings in the world, for it was made of iron and glass. It was one of the biggest buildings of all the time and a lot of people from many countries came to see it. Plenty of goods were sent to the exhibition from all parts of the world. There was also a great deal of machinery on show. Though in those days, traveling was not as easy as it is today, steamboats carried thousands of visitors across the Channel from Europe. On arriving in England, they were taken to the Crystal Palace by train. There were six million visitors in all, and the money from the exhibition was used to build museums and colleges. Later the Crystal Palace was moved to the South London. It remained one of the most famous buildings in the world until it was burnt down in 1936. Question: The Crystal Palace was famous to all because _ . - it is the biggest building in the world - so many visitors had been there - it was made of iron and glass - it was burnt down at last
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it was made of iron and glass

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Read the following article and select the best answer. Article: SAN FRANCISCO -- Sales for Apple's third generation iPad has hit record in the first days after it was on the market, Apple and carrier AT&T said on Monday. The new iPad went on sale on March 16 in the United States along with nine additional countries and areas. "We had a record weekend, and we are thrilled with it," Apple's CEO Tim Cook said Monday at a conference. Shortly after the conference call, AT&T said the launch of the new iPad set a new single-day record for its sales. "On Friday, March 16 AT&T set a new single-day record for its iPad sales, showing strong demand for the new iPad on the nation's largest 4G network," said the mobile carrier in a brief announcement. The new iPad is Apple's first 4G-capable product, featuring retina display, HD camera and faster processor. Before hitting stores, the new iPad pre-sales were sold out worldwide in two days. BEIJING -- A Chinese farmer was sentenced to 13 years in prison Monday for stealing art pieces from the Forbidden City last year, court authorities said. Shi Baikui, 27, was fined 13,000 yuan ($2,059) and was deprived of his political rights for 3 years, according to the ruling announced by the Second Intermediate People's Court in Beijing Monday morning. Shi, from East China's Shandong Province, broke into the heavily guarded former home of Chinese emperors in the heart of Beijing, and stole nine art pieces made of gold and jewels, on May 8, 2011, the court said in a statement. While hurriedly escaping, Shi left behind five of the pieces in the Forbidden City's compound . Failing to immediately sell the treasures, he threw the other four pieces away the next day, the document said. Six pieces were recovered and the three missing were worth about 150,000 yuan ($23,760) in total. Shi was arrested by police at an Internet cafe in Beijing's Fengtai district 58 hours after the theft. Question: The new iPad is so popular because _ . - it's better equipped - it's made in the United States - it is Apple's first product - it depends on the nation's largest 4G network
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it's better equipped

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Read the following article and select the best answer. Article: Climbers at the top of Mount Everest, the world's highest peak, will now be able to make video calls and surf the Internet on their mobile phones, a Nepalese telecom group claims. Ncell, a branch company of Swedish phone giant TeliaSonera, said on Thursday it had set up a high-speed third-generation (3G) phone base station at an altitude of 5,200 metres in the Everest region. "Today we made the world's highest video call from Mount Everest base camp successfully. The coverage of the network will reach up to the peak of Mount Everest," Ncell Nepal chief Pasi Koistinen told reporters in Kathmandu. The installation will also help tens of thousands of tourists and hikers who visit the world's highest mountain every year. Climbers who reached its 8,848-metre peak previously depended on expensive satellite phones and a voice-only network set up by China Mobile in 2007 on the Chinese side of the mountain. "This is a great milestone for mobile communications as the 3G high speed Internet will bring faster, more affordable telecommunication services from the world's tallest mountain," said Lars Nyberg, chief executive of TeliaSonera, which owns 80 percent of Ncell. The 3G services will be fast enough to make video calls and use the Internet, said the company, which also claimed the world's lowest 3G base at 1,400 metres below sea level in a mine in Europe. Despite the installation in Mount Everest, telecom services cover less than one-third of the 28 million people of Nepal, one of the poorest countries in the world. TeliaSonera said it planned to invest $ 100 million in the next year to ensure that mobile coverage increases to more than 90 per cent of the Himalayan nation's population. The 3G network on Mount Everest puts TeliaSonera ahead of state-controlled Nepal Telecom, Indian-owned United Telecom and China Mobile. Around 3,000 people have climbed to the Everest summit since Edmund Hillary and Tenzing Norgay became the first people to conquer the peak in 1953. Question: According to Lars Nyberg, the 3G services they provide _ . - are fast and convenient - are a little expensive - can make voice-only calls - offer free emailing
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are fast and convenient