I'm taking a test and have to guess the right answer to the question after the article. Article: Scientists have devised a way to determine roughly where a person has lived using a strand ( ) of hair, a technique that could help track the movements of criminal suspects or unidentified murder victims. The method relies on measuring how chemical variations in drinking water show up in people's hair. "You're what you eat and drink, and that's recorded in your hair," said Thure Cerling, a geologist at the University of Utah. While U.S. diet is ly identical, water supplies vary. The differences result from weather patterns. The chemical composition of rainfall changes slightly as rain clouds move. Most hydrogen and oxygen atoms in water are stable, but traces of both elements are also present as heavier isotopes ( ). The heaviest rain falls first. As a result, storms that form over the Pacific deliver heavier water to California than to Utah. Similar patterns exist throughout the U.S. By measuring the proportion of heavier hydrogen and oxygen isotopes along a strand of hair, scientists can construct a geographic timeline. Each inch of hair corresponds to about two months. Cerling's team collected tap water samples from 600 cities and constructed a map of the regional difference. They checked the accuracy of the map by testing 200 hair samples collected from 65 barber shops. They were able to accurately place the hair samples in broad region roughly corresponding to the movement of rain systems. "It's not good for pinpointing ( )," Cerling said. "It's good for eliminating many possibilities." Todd Park, a local detective, said the method has helped him learn more about an unidentified woman whose skeleton was found near Great Salt Lake. The woman was 5 feet tall. Police recovered 26 bones, a T-shirt and several strands of hair. When Park heard about the research, he gave the hair samples to the researches. Chemical testing showed that over the two years before her death, she moved about every two months. She stayed in the Northwest, although the test could not be more specific than... Question: What did Cerling's team produce in their research? Options: A: A map showing the regional difference of tap water. B: A collection of hair samples from various barber shops. C: A method to measure the amount of water in human hair. D: A chart illustrating the movement of the rain system.
A

I'm taking a test and have to guess the right answer to the question after the article. Article: Samantha, or Sam, as her husband, John, called her, had left the doctor's house looking perfect, satisfied with her appearance. The year was 1862. It seemed that the war with the North would never come to an end. Sam's father had left as soon as possible, swearing that he'd fight for Virginia, for their land, for their new government, for God, for the South. At last, Samantha reached the house that she and John owned. It was a cold, rainy night, and she was glad to be home. She stepped into the sitting room. John rested in an armchair, reading a book. He glanced at her, put the book down, and stood, reaching his arms out for her. They kissed briefly. He put a hand to her now slightly round belly and asked, "What did the doctor say?" "He said the baby was fine and that I seemed healthy. Do you have any news?" "Surprisingly, yes." John hesitated for a moment, as if deciding how he would phrase what he was about to say, and then unwillingly continued, "I've been demanded to join the army." Sam screamed, "What?" She was near tears. "But-but we're just starting out." Her voice shook. "I thought that after two years of begging my mother to let the two of us get married that our life would finally be happy. Isn't there any way you can get out of this?" John answered, "I'm afraid not." "Please. Please, John, if you love me, please get out of this. Break a leg, fake an illness, do something." She began to sob. John comforted her, resting her head on his shoulder. "Sam." "What?" "Name the child after me; name it John or Joanna. I'll come back as soon as I can. I promise." Sam smiled into his collar bone, knowing that John lived by his word. He never broke a promise. She pressed her hand to her belly, and, unknown to her, the baby was a girl. And unknown to both of them, the promise that John had just made would be the only promise he would ever break. Question: Sam visited the doctor probably because she _ . Options: A: tried to see her husband B: wanted to look perfect C: was a little worried about her appearance D: needed an examination for her baby
D

I'm taking a test and have to guess the right answer to the question after the article. Article: Crossroads International How does Crossroads work? Crossroads is a resource network. We take goods Hong Kong doesn't want and give them to people who badly need them. We collect those goods and give them out in the welfare arena in Hong Kong, Mainland China, elsewhere in Asia, Eastern Europe and Africa. So Crossroads is just that: a Crossroads between need and resource. Who do we help? The welfare agencies we help do not run on large budgets . They are grass-root groups who have seen a need and tried to meet it. They can't get the job done without back-up, though, so our task is to help them do their task. Our warehouse is full of goods, from computers to high chairs, clothing to books, stationery to medical provision, cupboards to dinning sets. They send us a list of their needs and we try to match it with the resource we have in stock. How do we operate? Crossroads itself also operates on a low budget. We do not buy the goods we send. They are donated. Similarly, rather than raising funds for freight ,we ask transport companies to donate their services. Nobody in our organization receives a salary. Even our full-time staff works on a voluntary basis. Those that donate goods and services: *Factories*Manufacturers *Hospitals *Hotels *Householders *Offices *Other Charities *Transport Companies *Educational Institutions One resource that we are always in need of is people. While we receive large quantities of goods and there is never a short supply of requests for them, we are always in need of hands to help sort and prepare them for shipping. What can I do? We are always in need of people. We have a lot of tasks. If you are volunteering regularly, we can offer work in some of the following categories, some of the time. You are welcome to number your top three choices and we will do our best to accommodate them. *Clothing categorization *Sewing *Toy categorization *Furniture handling *Driving *Book categorization *Household goods categorization *Office work *Electrical goods categorization *Book keeping... Question: From the above brochure, we can conclude that _ . Options: A: people who work at Crossroads get low pay from it B: Crossroads doesn't give goods directly to the people who need them C: You can do whatever you like if you offer help at Crossroads D: Crossroads has collected more goods than needed
B