Problem: Write a multi-choice question for the following article: Article: It's illegal for the police to attach a GPS unit to your car without your permission, as the U.S. Supreme Court settled in 2012.But if the police are in hot pursuit of a bank robber or other escaping criminals that threaten public safety, a GPS tracker is acceptable. But exactly how can the police GPS track a car that is moving fast? The answer to that question comes from StarChase,a new police technology being used by a small but growing number of law enforcement agencies.It allows the police to fire 4.5-inch glue-covered GPS bullet-like projectiles from an air gun fixed in their police cars.If the GPS tracker makes contact with the escaping robber's car, it'll stick no matter how fast the vehicle is going.That way, the police will have a constant read on the car's location and heading.Aside from simply apprehending criminals,it's believed this new technology could help save lives.If the police successfully fire a GPS unit at a speeding criminal,they can pull back from a high-risk chase.Chases can be incredibly dangerous to all involved,including innocent bystanders and other drivers.Once the GPS bullet connects,there's no need for the chase any longer. Now,predictably,a GPS-loaded gun isn't cheap. Police departments need to pay about $5.000 per vehicle for the technology,and individual GPS bullets cost as much as $250 each.That may sound expensive,but remember:The alternative is often thousands of dollars in property damage,and great human cost in injury and lost life.According to Star Chase,their GPS bullet system has an apprehension rate of 80%without any report of inury or property damage.If you'd like to learn more about the StarChase system,Popular Mechanics has just published a good article about it.There's also plenty more information available at the company's website.

A: Question: When the GPS bullet sticks to the escaping robber's car,the police can _Options:A know the car's conditionB ensure the robber's safetyC play a fair game with the robberD know the car's position and directionAnswer:D

Problem: Write a multi-choice question for the following article: Article: You can't always predict a heavy rain or remember your umbrella. But designer Mikhail Belvacv doesn't think that forgetting to check the weather forecast before heading out should result in you getting wet. That's why he created lampbrella, a lamp post with its own rain sensing umbrella. The designer says he come up with the idea after watching people get wet on streets in Russia. "once, I was driving on a central Saint Petersburg street and saw the street lamps lighting up people trying to hide from the rain. I thought it would be appropriate to have a canopy built into a street lamp." he said. The lampbrella is a standard-looking street lamp fitted with an umbrella canopy. It has a built-in electric motor which can open or close the umbrella on demand. Sensors then ensure that the umbrella offers pedestrians shelter whenever it starts raining. In addition to the rain sensor, there's also a 360degmotion sensor on the biberglass street lamp which detects whether anyone's using the lampbrella. After three minutes of not being used the canopy is closed. According to the designer, the lampbrella would move at a relatively low speed, so as not to cause harm to the pedestrians. Besides, it would be grounded to protect from possible lighting strike. Each lampbrella would offer enough shelter for several people. Being installed at 2 meters off the ground, it would only be a danger for the tallest of pedestrians. While there are no plans to take lampbrella into production, Belyacv says he recently introduced his creation one Moscow Department, and insists this creation could be installed on any street where a lot of people walk but there are no canopies to provide shelter.

A: Question: For what purpose did Belyacv create the lampbrella?Options:A To predict a heavy rainB To check the weather forecastC To protect people from the rainD To remind people to take an umbrellaAnswer:C

Problem: Write a multi-choice question for the following article: Article: The Friday after the American holiday of Thanksgiving is called Black Friday. It's said that it's the day that store ledgers move into the black and companies become profitable. On that day, retailers slash prices to get consumers to buy. It is also a time when many Americans start their Christmas shopping. VOA's Elizabeth Lee tells us how the economy may affect consumers on that bargain day. This day should be a shopper's dream. "It's just the deals, the sales and everything you can get for a lesser price," said Sandy Thomas, a shopper. But it's a nightmare for others. "I think it's crazy. I've done all of my shopping throughout the week so I don't have to go out on Friday," she said. It's called Black Friday, the start of the traditional Christmas shopping season in the United States. Every year it's the day after the Thanksgiving holiday. Stores open before sunrise and there are deep discounts everywhere you look. Last year a crowd of bargain-hunters killed a Wal-mart worker in a New York suburb. This year, many stores are increasing security while they slash prices. "This is a huge time for the retail stores," said Fred Joutz from George Washington University. "This is when they begin making their profits for the year." Economics professor Fred Joutz says how Americans spend the weekend after Thanksgiving is a good indication of how consumers feel about the future. With the unemployment rate above 10 percent, Joutz says Americans are saving more and spending less. Some retailers are attracting consumers by opening on Thanksgiving Day, when shops are traditionally closed. Other stores open their doors anywhere from midnight to four in the morning. And shoppers will be lining up in front of the doors in order to be one of the first ones to walk through and get a big discount. Electronics like flat screen TVs are usually the first items to go. Sandy Thomas says it's an annual family tradition and well worth it. "I just save maybe half of what I would have spent on a regular, you know, shopping trip," she...

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Question: By saying "This day should be a shopper's dream", the writer means _ .Options:A shoppers have longed for this day for a long timeB the shops will be very crowded on that dayC the shops will keep open until the daybreak of next dayD shoppers can buy many items at low prices on that dayAnswer:D