input with options: Read the following article and answer the question. Article: (2013*,C)One day,when I was working as a psychologist in England,an adolescent boy showed up in my office.It was David.He kept walking up and down restlessly,his face pale,and his hands shaking slightly.His head teacher had referred him to me."This boy has lost his family,"he wrote."He is understandably very sad and refuses to talk to others,and I'm very worried about him.Can you help?" I looked at David and showed him to a chair.How could I help him? There are problems psychology doesn't have the answer to,and which no words can describe.Sometimes the best thing one can do is to listen openly and sympathetically. The first two times we met,David didn't say a word.He sat there,only looking up to look at the children's drawings on the wall behind me.I suggested we play a game of chess.He nodded.After that he played chess with me every Wednesday afternoon--in complete silence and without looking at me.It's not easy to cheat in chess,but I admit I made sure David won once or twice. Usually,he arrived earlier than agreed,took the chess board and pieces from the shelf and began setting them up before I even got a chance to sit down.It seemed as if he enjoyed my company.But why did he never look at me? "Perhaps he simply needs someone to share his pain with,"I thought."Perhaps he senses that I respect his suffering."Some months later,when we were playing chess,he looked up at me suddenly. "It's your turn,"he said. After that day,David started talking.He got friends in school and joined a bicycle club.He wrote to me a few times,about his biking with some friends,and about his plan to get into university.Now he had really started to live his own life. Maybe I gave David something.But I also learned that one--without any words--can reach out to another person.All it takes is a hug,a shoulder to cry on,a friendly touch,and an ear that listens. Question: When he first met the author,David _ . Answer:
OPTIONS:
- felt a little excited
- walked energetically
- looked a little nervous
- showed up with his teacher
output: looked a little nervous

input with options: Read the following article and answer the question. Article: For many years, scientists have wondered how Chrysopelea paradisi, known as the "flying" snakes, can stay afloat as they leap from one tree to another, sometimes covering a distance of as long as 79 feet. Now a new study has explained that it may be all to do with the way they move. The report was published by Virginia Tech scientist, Jake Soeha who has been studying the flying snakes for a number of years. He began his research by first focusing on its launch technique. He discovered that the snakes first make themselves completely flat and then move side to side; they glide rapidly at a speed of between 26-33 feet per second, before leaping off. Once they take off, their bodies actually tilt at about a 25-degree angle to the airflow created by their flight. When they first leap, the snakes start to drop altitude to pick up speed. With the front of their bodies held stiff, they start a strange air-gliding dance, by moving from side to side. This turns their entire body into one big wing, allowing them to glide across long distances. The findings are not only exciting because they solve the puzzle of how the snakes are able to fly, but also because the same principles could be used to build small flying instruments. The flying snakes that are native to South and South East Asia spend most of their lives in trees in the lowland tropical forests. They grow between 2-3 feet long and are about as wide as a human finger. As would be expected, the smaller and lighter ones are more able to "glide" for longer distances than the bigger and heavier ones. They are not the only wingless animals that can fly -- there are flying frogs that use similar gliding techniques to make their way across forests. Question: Which of the following is TRUE about the findings of the study? Answer:
OPTIONS:
- It made the scientists excited and puzzled.
- It popularised flying snakes.
- It can help with the building of small flying instruments.
- It taught the public more about snakes.
output: It can help with the building of small flying instruments.

input with options: Read the following article and answer the question. Article: For pet owners, the hundreds of pet food recalls taking place each year has raised a lot of alarm. "Most people are caring pet owners, and they want to do what helps protect their pet," explains Will Post, founder and CEO, Hound & Gatos Pet Foods Corporation. "Yet the problem is that most are not sure what that means and how to go about it. The more they learn about pet food, the better able they will be to make an informed decision that will keep their pet healthier and safer." Here are several tips that consumers may want to keep in mind when it comes to choosing a pet food that will help reduce the risks. Get to know the company. Most people may know a company name simply because they spend millions on advertising. But that doesn't mean they know much about the company or their morals. Research companies to find one that offers high standards, quality products, and great customer service. Ask questions. Don't be afraid to get in touch with a pet food company and ask them where something was made, where ingredients came from, or any other questions. They should have no problem answering questions about their products, or with being able to provide proof of their quality standards. Read reviews. Do some searches to read some reviews about various brands of pet food. Keep in mind that some reviews can be one-sided and even planted by the company itself, so look for fair third-party sources giving the review. Investigate ingredients. The source of ingredients is of major concern when it comes to reducing the risks of pet food recalls and keeping pets healthy. Read the labels and ask questions to determine where the ingredients are coming from. Understand pet foods. Cat and dog food should contain 100 percent protein, which will supply them with the nutrients their bodies require. The problem with many commercial pet foods is that it is full of numerous fillers, such as cheap fillers and grains. Question: How can people provide a safer and healthier environment for their pet? Answer:
OPTIONS:
- By giving more food to their pet.
- By getting a better understanding about pet food.
- By accompanying their pet more.
- By knowing more about their pet.
output:
By getting a better understanding about pet food.