Q: Read the following article and answer the question. Article: Have you ever heard of e-waste(electric waste,), which can be produced every day? How do you deal with your computers, MP4 players and mobile phones when they're broken or you want a new one? Most people just throw them away. With the development of electric industry, e-waste pollution has become a serious problem. According to the United Nations, in 2014, people around the world produced 41.8 million tons of e-waste and only recycled 6.5 million tons. The US was the biggest waster, producing 7.1 million tons. China came second, with 6 million tons. It's important to pay attention to e-waste. It can either be valuable or harmful , depending on how we deal with it. E-waste is a valuable urban mine . The value of the metals, like gold and silver in the waste around the world, is amazing. And the metals can be reused. But if people throw them away, the toxic chemicals can get into the earth or air, effecting the environment and people's health. Apple, for example, now recycle people's used products in China when they are buying new ones. The company will test and repair the used ones and sell them at lower prices. To help reduce e-waste, we can also take computers and phones to see if companies offer recycling programs. Question: The following can become e-waste EXCEPT _ . Answer:

OPTIONS:
- computers
- mobile phones
- plastic bags
- MP4 players

A: plastic bags

input: OPTIONS:
- rain falls
- it gets very hot
- it gets very cold
- Both B and C Now, answer this question: Read the following article and answer the question. Article: When the weather is hot, you go to a lake or an ocean. When you are near a lake or an ocean, you feel cool. Why? The sun makes the earth hot, but it can not make the water hot. Though the air over the earth becomes hot, the air over the water stays cool. The hot air over the earth goes up, then the cool air over the water moves in and takes the place of the hot air. When you are near a lake or an ocean, you feel the cool air when _ moves in. You feel the wind and the wind makes you cool. Of course, scientists cannot answer all of our questions. If we ask "Why is the ocean full of salt?" scientists will say that the salt comes from rocks. When a rock gets very hot or very cool, it cracks , and rain falls into the cracks. The rain then carries the salt into the earth and the rivers. The rivers carry the salt into the ocean. But then we ask "What happens to the salt in the ocean? The ocean does not get saltier every year. " scientists are not sure about the answer to the question. We know a lot about our world. But there are still many answers that we do not have, and we are curious . Question: A rock crack when _ . Answer:
A:
output: Both B and C

Read the following article and answer the question. Article: Hellen Keller was born in 1880 in the USA. When she was about 19 months old, she got very ill. After many weeks, the doctor told her parents, "Your daughter is better, but now she can't see and she can't hear." Her mother and her father were very sad. After a few years , things got worse. There was no way for Helen to speak to other people. She heard nothing. She didn't understand anything. Then one day a teacher came. Her name was Anne Sullivan. She lived with Helen and her family. The teacher helped Helen learn words. Helen was a very bright child and soon she learned to spell her first word. When she was older, she went to college . Helen was a very old woman when she died. The world remembers her today as a brave and wonderful person. She was blind and deaf, but she found a way to see and hear. It helped many people in the world. Question: What happened to Helen when she was 19 months? Answer:

OPTIONS:
- She got very ill.
- She began to go to school.
- She left her home.
- Her mother died.

Answer: She got very ill.

Problem: OPTIONS:
- Three
- Four
- Five
- Six
Q: Read the following article and answer the question. Article: An interesting experiment is taking place at the Children's Hospital in London. Dogs, cats, and even horses help sick children to get better. Dr. Marcus Finch of the Children's Hospital says,"Children have many problems as they are growing up. When they have problems, it's not easy for them to open up. But when they are with a pet animal, they feel relaxed and always smile. Animals don't speak, so they don't criticize .They listen and don't stop children. Children can talk with animals because they can believe them. Animals know how to keep secret! Also, children feel they are needed because they help to feed the animals and look after them."At the Children's Hospital, you can find children playing with cats, dogs, and goats,and riding horses. The doctors just watch them and are surprised at the power of the animals. Question: How many kinds of animals are mentioned in the passage? Answer:
Answer: Three

Problem:OPTIONS:
- 2
- 28
- 30
- 31

Read the following article and answer the question. Article: A recent survey of 2000 parents in Britain showed that they are often afraid of science questions asked by their curious children only because they have no idea what the answer is. Here is a list of some simple questions that you can ask your parents to see if they know the answers. Q: Why is the sky blue? A: You probably know white sunlight is made up of seven colors. While it moves in a straight line when going through space, it starts to divide as it hits "raised area" in the atmosphere. The ones with longest wavelengths pass through easily. The blue , however , can be taken in by the gas molecules because it has a shorter wavelength , which in turn scatters it in different directions. That's why when you look up at the sky, it appears to be blue. Q:Why does the moon sometimes appear during the daytime? A: The simple answer to that is because just like any other object it is being lit by the sun. As long as it is around 45 degrees or even 90 degrees off the sun, it will receive light and be able to be seen. The only time it is not able to be seen during its 28-day orbit around the earth is when it is right between the earth and the sun. That's because its back , which is not lit by the sun, is facing us. Q: Where do birds/ honeybees go in winter? A: While the bird part is quite easy, since a lot of them get together and travel, the honeybee part is likely to puzzle your parents. It turns out that these busy insects stop being that active when the temperature drops below 50degF. Instead ,they get together in the lower central area of the hive and form a ball around their queen. This helps keep both warm enough to survive the cold winter months. Question: How long can't the moon be seen during the daytime in a month? Answer:
****
A:
28