Question: Read the following article and answer the question. Article: This is a true story from Guyana. One day, a boy took a piece of paper from a box. He made a paper ball and pushed it into his nose. He couldn't get it out. He ran crying to his mother. His mother couldn't get the paper out, either. A week later, the paper was still in the boy's nose. His nose began to have a bad smell. So his mother took the boy to a hospital. The doctor looked up at the child's nose, but she couldn't get the paper out. She said she had to cut the boy's nose to get the paper out. The boy's mother came home looking sad. She didn't want her child to have his nose cut. The next day she took the boy to her friend Sidney who lived in a house with an old lady called May. May wanted to see the child, so the child let her look up his nose. "Yes, I can see it," May said. "It will be out soon." As she spoke, she shook some black pepper on the child's nose. The child gave a mighty sneeze and the paper flew out. His mother was surprised. May told his mother to take the boy to the seaside for a swim, for the salt water would go up his nose and stop the bad smell. So the lucky boy didn't have to go to the hospital to have his nose cut. Question: After the boy pushed a paper ball into his nose, _ . Answer:
OPTIONS:
- he took it out
- his mother took it out
- he did nothing but cry
- he tried to take it out but failed
Answer: he tried to take it out but failed

Question: Read the following article and answer the question. Article: On "Super Bowl Sunday", millions of Americans are glued to their TVs. They are eating pizza, chicken wings and chips and cheering every move. They're watching the Super Bowl. Why are Americans so crazy about American football? Well, it is more exciting than other sports. One team can lose possession of the ball in a minute, which may allow their opponents to make a touchdown . Then that team may win the game unexpectedly. The Super Bowl also entertains its audience with a great halftime show. The football field is turned into a stage. Then an impressive performance of dancing and singing with special effects occurs. Since the Super Bowl is the most-watched TV program in America, commercial airtime is also very expensive. Big money is also spent on commercials. They draw the viewers' attention and advertise their image or products during the commercial break. After football season, the "March Madness" begins. The NCAA (National Collegiate Athletic Association) competitions begin with 68 men's college basketball teams. They play until the field is reduced to the "Final Four". The winning team becomes the national champion. The NBA (National Basketball Association) All-Star game is also held in February. The best players from all the teams play in this game. Baseball is no doubt American's national sport. From grandpas to young kids, whole families go to ball games together. They wear their favorite team's caps or even carry their mascot . Our family went to watch Wang Chien-Ming play in D.C. once. We ate hot dogs, waved flags and sang during the 7th inning stretch. If you are not a sports fan yet, come and pick a sport or a team. Go to a ball game with your family, and cheer your team on. Sports are definitely a part of American culture one should not miss. Question: According to the passage, the Super Bowl is _ . Answer:
OPTIONS:
- a well-received American football game
- an expensive American sport
- an impressive TV performance
- a most-watched TV series
Answer: a well-received American football game

Question: Read the following article and answer the question. Article: Lichens are difficult to see. They don't move. They often mix into the living place. You might not even recognize one if you are looking right at it. Lichens live on rocks, branches, houses, and even metal street signs. You can find these colorful organisms almost everywhere -- from deserts to rainforests, and from Antarctica to Africa. They've traveled in outer space, and some scientists think there might even be lichens on Mars. What you probably don't realize is that a lichen is more than a single thing. It includes two different types of living organisms: a fungus and an alga . Neither of these organisms is a plant, so the lichen isn't a plant either. Through photosynthesis , the alga gets the sun's energy to make food for the fungus, which is the place for the alga to live in. However, the alga cannot leave the fungus. Around the world, scientists have found tens of thousands of types of lichens. Many may not even have been discovered yet. As scientists continue to find new kinds of lichens, they are also working to understand how they are connected to one another. By putting together a lichen family tree, they hope to understand why so many different types of lichens have grown in so many places around the world. Many researchers are trying to understand basic facts about the organisms and their connections. Researchers are also using lichens to examine the health of the environment. Question: We can know from the passage that _ . Answer:
OPTIONS:
- lichens can be used to better understand the environment
- lichens don't have any differences in colors or sizes
- lichens don't use photosynthesis like a green plant
- scientists have discovered every kind of lichen
Answer:
lichens can be used to better understand the environment