Read the following article and select the best answer. Article: Annealing is a way of making metal softer by heating it and then letting it cool very slowly. If metal is heated and then cooled very quickly , for example by dipping it in water , it will be very hard but also very brittle ---that is , It will break easily. Metal that has been annealed is soft but does not break as easily . It is possible to make metal as hard or as soft as is wished, by annealing it. The metal is heated, and allowed to cool slowly , for a certain length of time. The longer the heated metal takes to cool slowly , the softer it becomes . Annealing can also be used on other materials, such as glass. Question: Why do people put hot metal in water ? _ - To make it hard - To make it soft - To make it cool - To make it brittle
To make it hard

Read the following article and select the best answer. Article: While waiting to pick up a friend at an airport in Portland, Oregon, I had one of those lifechanging experiences that you hear other people talk about--the kind that happens to you unexpectedly. To me, this happened and was only two feet away from me. Locating my friend among the passengers, I noticed a man coming toward me carrying two light bags. He stopped right next to me to greet his family. First he walked to his youngest son (maybe 6 years old) as he laid down his bags. They gave each other a long, loving hug. As they separated enough to look in each other's face, I heard the father say,"It's so good to see you, son. I missed you so much!" His son smiled somewhat shyly, and replied softly,"Me, too, Dad!" Then the man stood up, gazed into the eyes of his oldest son (maybe 9 or 10) and while cupping his son's face in his hands said, "You're already quite a young man. I love you very much, Zach!" They too hugged a most loving, tender hug. While this was happening, a baby girl (perhaps one or oneandahalfyear old) was squirming excitedly in her mother's arms, never once taking her little eyes off the wonderful sight of her returning father. The man said,"Hi, baby girl!" as he gently took the child from her mother. He quickly kissed her face all over and then held her close to his chest while rocking her from side to side. The little girl instantly relaxed and simply laid her head on his shoulder, motionless in pure contentment. After several moments, he handed his daughter to his oldest son and declared,"I've saved the best for last!" and went to give his wife the longest, most passionate kiss I ever remember seeing. He gazed into her eyes for several seconds and then silently mouthed, "I love you so much!" They stared into each other's eyes, beaming big smiles at one another, while holding both hands. For an instant they reminded me of newlyweds, but I knew by the age of their kids that they couldn't possibly be. I puzzled about it for a moment then realized how totally attentive I was in the wonderful... Question: The writer suddenly felt uncomfortable because _ . - he felt it impolite to stare at the family - he felt he withdrew from society - the family found him curious about them - he didn't love his wife as much
he felt it impolite to stare at the family

Q: Read the following article and select the best answer. Article: Dogs and cats are not for students who live in the dormitory. Just think about the noise, the smell and all that wild behavior--chewing on whatever they can get their teeth on, or knocking over the trash can. But don't feel sad. There are smaller and less destructive pets to make your dormitory life colorful. Betta fish They make great pets with their big personality and astonishing colors, ranging from bright red, dark blue to lemon yellow. Unlike many fish, most bettas react to their owner's presence and become more active when they are nearby, which is unusual in the fish world. Chinchillas Without bad smell, about the size of a rabbit and with fur so dense that they can't get pests such as fleas , the friendly creature originally from the Andes Mountains in South America makes an ideal indoor pet. Chinchillas are very social animals, so if you only have one, you will become its family. In cold winter days, in a glance at this fury pet in a dorm will bring you a lot of warmth. Land hermit crabs In a society where owners are often asked "Are they tasty?", land hermit crabs are among the most unlucky animals commonly kept as pets. But they are easy to care for, inexpensive and fascinating to watch. And the fact that they don't cause any allergic reactions makes them perfect for college dormitories. Red-eared sliders If you're interested in a lifelong friend, a red-eared slider makes a wonderful pet. If well cared for, they can live for around 40 years. But there are a couple of things you should know. Red-eared can grow to an adult size of up to 30cm! So you may need a larger tank quickly. In addition, you will need to provide UV lighting, water heater, and a swimming area and a basking area. Housing a red eared slider is not easy. Question: All the dormitory pets mentioned in the text are _ . - active and allergic - quiet and peaceful - colorful and tasty - small and smelly
A: quiet and peaceful

Q: Read the following article and select the best answer. Article: Happiness pays off, studies show. Psychologists seeking the real secrets of happiness report that very happy people tend to be more _ and agreeable than less happy people. "Our findings suggest that very happy people have rich and satisfying social relationships and spend little time alone compared to average people," write psychologists Ed Diener and Martin E. P. Seligman in the journal Psychological Science. Solid social relationships do not promise happiness, but they are an important contributing factor. The very happy people whom the authors studied all said they had good quality social relationships. However, the authors write, there is no single key to high happiness. "High happiness seems to be like beautiful symphonic music--including many instruments, without any one being enough for the beautiful quality." Diener regards happiness as "subjective wellbeing"--in other words, the person evaluates his or her own quality of life. The question to ask is, "Is my life going well, according to the standards I choose to use?" If the answer is "yes", then that person is judged to be happy. Because people evaluate their lives based on happiness, subjective wellbeing is very important. Though necessary, it is not enough for having a good life. "Subjective wellbeing seems quite necessary for the 'good society', although it is not enough for that society because there are other things we also value and would want in such a place." says Diener. Can subjective wellbeing be measured scientificall? Diener points out three parts contributing to happiness: pleasant emotions and moods, lack of negative emotions and moods, and satisfaction judgment, to which other factors including cheerfulness and feelings of fulfillment may be added. There is no magic formula for happiness. Diener suggests steps you can take to ensure you are as happy as you can be. Surrounding yourself with good friends and family--people who care about you and whom you care about--is a start. Joining in activities you enjoy and value is also... Question: According to Diener, a person can be judged to be happy when he _ . - has rich and satisfying social relationships - spends more time with other people - joins in a lot of activities he enjoys and keeps himself optimistic - thinks his life is going well according to his own standards
A: thinks his life is going well according to his own standards