Write a multi-choice question for the following article, with the given choices and answer: Article: It is easy for us to tell who our family members are, but do plants recognize their own family? Some do, scientists say, according to a report by Science News in early 2010. Guillermo P. Murphy and Susan Dudley are two plant scientists from McMaster University in Hamilton, Canada. They did a few experiments with Jewelweeds, a kind of flower that grows in wet, shady spots. They found that the flowers seem to know their own flower family. In their experiments, Murphy and Dudley planted jewelweeds in pots with either _ or strangers. When jewelweeds were planted in pots with strangers, the plants started to grow more leaves than if they had been planted alone. This response suggests that plants are competing with strangers for sunlight, since a plant with more leaves can receive more light and make more food. Jewelweeds usually grow in the shade, where sunlight is not enough. When jewelweed seedlings were planted with siblings, they grew a few more branches than they usually would if they were alone - but they did not start growing lots of extra leaves. This behavior suggests the plants are more likely to share resources, rather than compete. According to the Science News report, Jewelweeds are not the first plants that plant scientists have studied for family recognition. In 2007, Dudley and her team studied the Great Lakes sea rocket, a plant that grows on the beach - where it may be hard to get fresh water. In that experiment, the scientists found that when sea rockets were planted with siblings, they tolerated each other. But when they were planted with strangers, the sea rockets reacted by working extra hard to grow lots of roots. Dudley says this just because sea rockets, on the beach, get plenty of sun but struggle for water - so when they're threatened, they compete for water. Jewelweeds have plenty of water but have to compete for sunshine, so they grow more leaves. Options: A make a comparison B introduce a topic C describe a pretty flower D build a new theory Answer: B introduce a topic Question:
Ans: In the text, the writer mentioned the experiments of Jewelweeds to _ .

Write a multi-choice question for the following article, with the given choices and answer: Article: In 50 years of traveling, Colin McCorpuodale has visited every country in the world except three. And everywhere he goes, he sends himself a postcard. He always chooses a postcard with beautiful scenery . Usually he writes just a short message to himself. However, he wrote an interesting story on his latest one, from the Malians Island. Mr. McCorpuodale lives in London. On one of the walls in his room, you can see a large map of the world. There are hundreds of little red pins stuck in it. "These pins mean a lot to me." says Mr. McCorpuodale, "I follow the rule. I'm allowed to stick one in only if I've been in a place for more than 24 hours." Naturally, Mr. McCorpuodale has his favorite places. New Zealand, he describes as "a wonderful country". About China, he says, "This is the country in the world which is completely different. There is no European influence." Wherever he goes, Mr. McCorpuodale takes with him a photo of his wife, a candle, a shirt with a secret pocket and a pen. So why does he do it? For the postcards or the travels? Mr. McCorpuodale laughs, "Neither. Only for the meaningful life." Options: A Malians Island. B An interesting story. C Beautiful scenery. D His favorite places. Answer: B An interesting story. Question:
Ans: What did Mr. McCorpuodale write about on his latest postcard?

Write a multi-choice question for the following article, with the given choices and answer: Article: Mrs. Jackson was a rich woman. She had many friends. She liked cooking very much and she often invited her friends to her big house. One day, she invited some of her friends to lunch. She wanted very much to try a new way of cooking a fish, and she was very pleased with herself when the dish was ready. The fish was very hot, so she put it near the open window to make it cool. But five minutes later, when she came back for it, she was surprised to see her neighbor's cat, Mike, eating the fish. She was in time to stop the cat before it was too late. That afternoon everything was good and all her friends liked the fish very much. They talked until four o'clock. Then they said goodbye and left. At the end of that afternoon, when she was alone again, Mrs. Jackson was very tired but happy. She was sitting in the chair just near the window. Then through the window, she was surprised to see her neighbor's cat dead in the garden! Why, the fish must be bad! What would happen to her friends? She telephoned her family doctor at once. The doctor told her to call each of her friends to see him at the hospital. At last, the danger was over. Once again, Mrs. Jackson was alone in her chair in the sitting-room, still tired but no longer happy. Just then the telephone rang. It was her neighbor. "Oh, Mrs. Jackson, Mike is dead. He was killed by a car and put in your garden...". ,. Options: A Mrs. Jackson had lots of friends. B One of her friends killed the cat. C Her friends enjoyed the fish very much. D All her friends were all right. Answer: B One of her friends killed the cat. Question:
Ans: Which is NOT true according to the passage?

Write a multi-choice question for the following article, with the given choices and answer: Article: You are probably familiar with the saying:An apple a day keeps the doctor away. A recent research carried out by the Chinese University of Hong Kong may change the saying: An apple a day may keep aging away. The research chose fruit flies , as they share many genes with humans. The fruit flies were either fed normally or had an apple extract added to their diet. It turned out that those fruit flies that were given apple extract lived about 55 days--five days longer than the flies that were normally fed. The research group also found it easier for the flies to walk,climb and move about as they aged. According to the result, the researchers believed that the antioxidants in the apple extract helped clean up dangerous chemicals that cause illnesses,as well as aging. In another study,researchers examined diets of thousands of women. They discovered that those who regularly ate apples were 20 percent less likely to suffer heart illnesses and stroke. The apples' genetic code was discovered recently. It allows scientists to develop nicer and healthier fruits. Researchers are already using the information to grow a kind of apples full of antioxidants that can keep eyes and joints healthy and protect humans against heart illnesses and cancer. Apples that kill the desire to eat could also be produced, with the first"extra-healthy''apples on supermarket shelves within just four or five years. The team that keeps studying apple DNA includes 100 scientists from five countries. Their research also suggests that around 65 million years ago, when dinosaurs began to die off the plant,which would finally become today's apple tree, experienced a great genetic change. The number of many of its genes doubled. The extra genes allowed the apple to get used to worse conditions and go through a different development from peaches,strawberries and other related fruits. Options: A Because they have a similar diet to humans. B Because they have a history as long as apples. C Because they share a lot of genes with humans. D Because they feed on nothing but apple extract. Answer: C Because they share a lot of genes with humans. Question:
Ans: Why were fruit flies used for the research?