Q: I'm taking a test and have to guess the right answer to the question after the article. Article: Welcome to the Kids' Science Challenge! Do you like science projects and winning some awesome gifts? This is the challenge for you. What's even better is that you don't have to build anything -- Simply come up with an original idea or design that relates to one of three topics given below. Wonderful Sounds Ready for Wonderful Sounds? Click on Science Secrets to meet our sound specialist. And be sure to download fun activities with crazy new sounds and musical instruments in the Dig In section! Now what kind of new musical instrument can you invent? Super Material for Sports Ready for Super Material for Sports? You'll discover the amazing world of Materials Science, where scientists and engineers develop new materials for everyday functions--like sports! Click on Science Secrets for information about our scientist. And don't forget to download the fun activities in the Dig In section! Now can you come up with a new sports material that would help you play your favorite sport? Magical Microbes Ready to discover Magical Microbes, the tiniest living things on earth? Click on Science Secrets for information about our scientists. And be sure to download all the fun activities in the Dig In section! Now can you think of a brand new way that microbes can help people? Question: What's the purpose of the Kids' Science Challenge? Options: A: To discourage kids' curiosity. B: To challenge kids' ability. C: To get kids join an activity. D: To dig kids' creativity.
A: D

Q: I'm taking a test and have to guess the right answer to the question after the article. Article: In cities with rent control, the city government sets the maximum rent that a landlord can charge for an apartment. Supporters of rent control argue that it protects people who are living in apartment. Their rent cannot increase; therefore, they are not in danger of losing their homes. However, the critics say that after a long time, rent control may have negative effects. Landlords know that they cannot increase their profits. Therefore, they invest in other businesses where they can increase their profits. They do not invest in new buildings which would also be rent-controlled. As a result, new apartments are not built. Many people who need apartments cannot find any. According to the critics, the end result of rent control is a shortage of apartments in the city. Some experts argue that the minimum wage law can cause problems in the same way. The federal government sets the minimum that an employer must pay workers. The minimum helps people who generally look for unskilled, low-paying jobs. However, if the minimum is high, employers may hire fewer workers. They will replace workers with machinery. Therefore, other things being equal, the number of workers that employers want decreases. Thus, critics hold the opinion that an increase in the minimum wage may cause unemployment. Some poor people may find themselves without jobs instead of with jobs at the minimum wage. Supporters of the minimum wage say that it helps people keep their dignity. Because of the law, workers cannot sell their services for less than the minimum. Furthermore, employers cannot force workers to accept jobs at unfair wages. Economic theory predicts the results of economic decision, such as decisions about farm production, rent control, and the minimum wage. The predictions may be corrected only if "other things are equal". Economists do not agree on some of the predictions. They also do not agree on the value of different decisions. Some economists support a particular decision while others criticize it. Economists do agree,... Question: The passage tells us about _ . Options: A: the relationship between supply and demand. B: the possible results of government controls. C: the necessity of government control. D: the urgency of getting rid of government control.
A: B

Q: I'm taking a test and have to guess the right answer to the question after the article. Article: What kind of pets do people have in your country? Dogs? Cats? How about a duck, hippo or lion? Here are two cases of animal owners with unusual pets. Barrie Hayman has a pet duck called Star. Barrie adopted him after his brothers and sisters stayed away from him at birth. Barrie, a duck breeder, realized the little duck needed special attention. So he began taking Star with him everywhere he went. "I would put him in my pocket while I did my shopping," said Barrie. Now, at five months, Star is too big for Barrie's pocket, but the two are still _ . They watch sports together and even share a drink together. Barrie said, "He is one fantastic duck. I've never known any like him." Star even has his own Facebook page, with more than 2,000 Facebook friends. Then there's the case of Tonie and Shirley Joubert in South Africa. They live with their pet hippo, Jessica. Tonie saved Jessica from floodwaters when she was only a day old. Jessica lives outside their riverside house, but she knows how to open the kitchen door, and often goes there for a snack. Tonie recently said, "I don't know whether Jessica sees me as a hippo or whether she sees herself as a human." Shirley is more certain, "Jessica sees herself as our child and I see Jessica as my daughter. I can't imagine my life without Jessica." Jessica is free to leave, and often visits wild hippos that live nearby. But she always returns home at night. Jessica's website notes that she has three hippo boyfriends, but one in particular, Fred, is her favorite. They often go grazing together and Fred has recently moved onto the Jouberts' house as well. Question: What's the main idea of the passage? Options: A: Some websites are set up to protect pets. B: Some unusual pets are adopted by people. C: People should take good care of their pets. D: Pets sometimes can be very interesting.
A: B

Q: I'm taking a test and have to guess the right answer to the question after the article. Article: Louis Armstrong had two famous nicknames . Some people called him Bagamo. They said his mouth looked like a large bag. Musicians often called him Pops, as a sign of respect for his influence on the world of music . Born in 1901 in New Orleans, he grew up poor, but lived among great musicians. Jazz was invented in the city a few years before his birth. Armstrong often said," Jazz and I grew up together." Armstrong showed a great talent for music when he was taught to play the cornet at a boy's home. In his late teens, Armstrong began to live the life of a musician. He played in parades, clubs, and on the steamboats that traveled on the Mississippi River. At that time, New Orleans was famous for the new music of jazz and was home to many great musicians. Armstrong learned from the older musicians and soon became respected as their equal. In 1922 he went to Chicago. There, the tale of Louis Armstrong began. From then until the end of his life, Armstrong was celebrated and loved wherever he went. Armstrong had no equal when it came to playing the American popular song. His cornet playing had a deep humanity and warmth that caused many listeners to say, "Listening to Pops just makes you feel good all over." He was the father of the jazz style and also one of the best-known and most admired people in the world. His death, on July 6, 1971, was headline news around the world. Question: Which would be the best title for the text? Options: A: The Father of the Jazz Style B: The Making of a Musician C: The Spread of Popular Music D: The Invention of the Jazz Music
A: A