Read the article and select the best answer. Article: With eight bloodshot eyes fixed on a flying object, the pains of a two-year project were about to bear fruit. It was Wang Hongyi's first test flight of an unmanned aerial vehicle (UAV) designed and assembled with his teammates from the Aero-Sport Club at Shanghai Jiaotong University. Wang is a senior mechanical engineering and automation major. He has been a plane model fan since childhood. As a freshman, he spent two nights building a model aircraft and took it to the sports field just for fun. Wu Junqi, the coach of Shanghai Jiaotong University's Aero-Sport Club, spotted Wang and told him his model was outdated. "I was a little angry, so he took me to the lab," says Wang. He was immediately drawn to the modern equipment and decided to join the club. As a technology fan, Wang spends most of his spare time in the lab. "He loves what he's doing, so he can stand the loneliness of doing research that others seldom have the persistence to carry out." says coach Wu. When Wang and his teammates were building UAV, they lived together in the lab. "We tried to spend as much time together as possible because there were thousands of problems that needed to be solved." Wang says. They didn't even have time to celebrate when the first test flight of the UAV went well. "We needed to list the problems that occurred during the flight and analyze them to find solutions." he says. "Our UAV isn't finished yet, but there are many design projects and people with similar interests waiting for me." Wang says. "The UAV is just the beginning, not the end of my aircraft journey." Question: Why did Wang succeed in doing the research? Options: A: He majored in mechanical engineering and automation. B: He had a good coach and wonderful teammates. C: He loved what he did and would stick to it. D: He was highly thought of by Wu Junqi.
C

Read the article and select the best answer. Article: Penguins can taste only sour and salty food, scientists have discovered. A genetic study suggests the flightless birds lost three of the five basic tastes long ago in evolution. Taste is critical for survival in most animals, but may not matter in the penguin, which swallows fish whole, say researchers in China and the US. Many other birds are unable to taste sweet things, but they do have receptors for detecting bitter and umami (or meaty) flavours. The discovery was made when researchers decoding penguin genomes found some of the taste genes were missing. A closer look at the DNA of penguins revealed that all species lack functioning genes for the receptors of sweet, umami, and bitter tastes. "Based on genetic data, penguins are believed to have sour and salty tastes, but have lost sweet, umami, and bitter tastes," lead researcher Prof Jianzhi Zhang, of the University of Michigan, US, and Wuhan University, China, told the reporter. The umami taste gives food the strong, savoury flavour associated with meat. Lacking this sense is surprising for a carnivorous animal, but does not matter that much in the penguin, which swallows fish without chewing. "Their behaviour of swallowing food whole, and their tongue structure and function, suggest that penguins need no taste perception," said Prof Zhang. "Although it is unclear whether these traits are a cause or a consequence of their major taste loss." The findings, published in Current Biology journal, were a puzzle, he added. One clue comes from the bird's evolution on the frozen ice sheets of Antarctica. Sending signals from sweet, umami, and bitter (but not sour or salty) taste receptors to the brain does not work at very low temperatures. This may have led to the penguin gradually losing its sense of taste, say the researchers. Intriguingly , the sweet taste is missing in almost all birds. The hummingbird, which feeds on sweet nectar, is an exception. Question: Which of the following statements is not true according to the passage? Options: A: Penguins swallow fish without chewing. B: The findings were published in Current Biology journal. C: Sending signals from sweet, umami, and bitter taste receptors to the brain does not work at very low temperatures. D: Prof Jianzhi Zhang was the lead researcher of a university in UK, and Wuhan University, China.
D

*Question*
Read the article and select the best answer. Article: One day a woman spotted a beggar sitting on the corner. The man was elderly, unshaven and ragged. Passers-by wanted nothing to do with him. But the woman smiled. "Are you hungry?" she asked. The man slowly looked up. This was a woman clearly used to the finer things in life. Her coat was new. She looked like that she had never missed a meal in her life. "No, " he answered sarcastically . "I've just come from dining with the president. Now go away. "To his surprise, the woman continued standing. And her smile became even broader. "What are you doing, lady?" he asked angrily. "I said to leave me alone. " Just then a policeman came up. "Is there any problem, ma'am?" He asked. "No problem here, officer," the woman answered. "I'm just trying to get this man to his feet. Will you help me?" The officer scratched his head. "That's old Jack. He's been around here for a couple of years. What do you want with him?" "See that cafeteria over there?" She asked. "I'm going to get him something to eat and get him out of the cold. " "Are you crazy, lady? I don't want to go in there!" Then the homeless felt strong hands lift him up. "Let me go, officer. I didn't do anything." "This is a good deal for you, Jack, "the officer answered. "Don't blow it. " Finally, the woman and the police officer got Jack into the cafeteria and sat him at a table. It was the middle of the morning, so most of the breakfast crowd had already left and the lunch bunch had not yet arrived. The woman turned to the officer, "Would you like to join us in a cup of coffee and a meal, officer?" "Yes, ma'am. That would be very nice. " Then, she sat down at the table across from her amazed dinner guest. She stared at him. "Jack, do you remember me?" Old Jack searched her face. "I think so --I mean you do look familiar. " "I'm Penelope Eddy. I'm a little older perhaps, "she said. "In my younger days when you worked here, I came through that very door, cold and hungry. " "I was just out of college, "the woman continued. "I... Question: By "I saw a miracle today", the officer means that _ . Options: A: some people get help just when they need it B: the cup of coffee is going to taste as sweet as sugar C: Jack was paid back for his kindness so many years later D: Eddy achieved her Success through painstaking efforts in the end
**Answer**
C