input: OPTIONS:
- every life needs food
- plants are very important
- no living thing can live alone
- 1iving things need different food Now, answer this question: Read the following article and answer the question. Article: All living things on the earth need other living things to live.Nothing lives alone.Most animals must live in a group,and even a plant grows close together with others of the same kind.Sometimes one living thing kills another,or one eats and the other is eaten.One kind of life eats another kind of life in order to live,and together they form a food chain .All food chains begin with the sun,and all food chain become broken up if one of them disappears. All life needs sunlight to live on.But only plants can use sunlight directly.Plants are"factories".They make food from sunlight,water and things in the soil and air. Plants feed all other living things.Animals can only use the sun's energy after it has been changed into food by plants.Some animals feed directly on plants,and others eat smaller animals.Meat-eating animals are only eating plants indirectly. What about human beings?We are members of any food chain.We eat rice,vegetables,fruits and so on.We also eat meat.But men often break up the food chain.They kill wild animals.They also make rivers,lakes and seas dirty.When these rivers,lakes and seas are polluted,the fish in them cannot be eaten.If men eat the fish,they will get strange diseases. Each form of life is linked to all others.Breaking the links puts all life in danger. Question: Food chains suggest that _ . Answer:
A:
output: no living thing can live alone

Read the following article and answer the question. Article: The Internet has become part of teenagers' life. A new report shows that 38 percent (......) of 3,375 students use the Internet often. Most of the students get useful information for their studies, but some are not using it in a good way. Many students are playing online games too much. Some even visit some unhealthy websites. A teacher from Beijing Yinghua Middle School, Hong Ying warns that something bad can happen if young people spend too much time on the Internet. She said that one of her students used to be good at school. But when he started visiting unhealthy websites,he hurt a girl by cheating online. At last the police caught him and sent him into the prison . In order to help young people use the Internet safely, some schools in Shanghai find a good way. The schools provide a textbook for the students. The book uses real examples to teach students about good ways of using the Internet. Teachers and parents all think the book is good. Hong said that the book will help students keep away from the bad behaviors of using computer. The book will teach students how to be a good person in the online world. Question: The aim of the book is to _ . Answer:

OPTIONS:
- teach students how to get online in a good way
- tell children how to make online friends
- tell a lot of stories about the harm of the Internet
- teach students how to play computer games

Answer: teach students how to get online in a good way

Problem: OPTIONS:
- Doing Research onRobots
- Asking Good Questions While Doing Research
- Having Interesting Answers on Robots
- Finding Subjects before Doing Research
Q: Read the following article and answer the question. Article: When you are curious about something and want to know more about it, you can use the way of asking questions. Asking questions is the first step to make discoveries and find interesting answers. The following steps can guide you during the research. Step 1 Write down the subject that you are interested in on a piece of paper. Just get the main idea down. For example, you might write: Discover more about robots. Step 2 Stop and think for a moment about what you have already known about your subject. List what you have already known like the sentences below: 1. The first robot appeared in the USA in 1959. 2. A robot can do housework and act as a teacher. 3. Sometimes a robot catches viruses and causes a lot of problems. Step 3 What can you do with what you want to learn? By asking questions, start writing down questions about the robots on the paper: 1. What might robots be like in the future? 2. What other things can robots do for people? 3. What kind of power will robots possibly use in five years? Step 4 _ , you can now go to the nearest library or computer to begin your research. As you learn more about your subject, you'll probably discover some new questions. For example, you might discover that robots can help scientists explore dangerous places, like the sea and outer space. How? What happened? Asking new questions can help you research your subject more widely. The next time you find something interesting to research, take time to organize your thinking by asking good questions. And remember that learning more always brings more questions. Question: What might be the best title for this passage? Answer:
Answer: Asking Good Questions While Doing Research

Read the following article and answer the question. Article: Edith Cavell was born in a little English village. She was a clever; hard-working girl and did well at school; especially in music and French. After she left school; her first job was to take care of the children of a rich family in Belgium . The language they spoke was French; so she found that her school studies were useful. She could understand them easily; at the same time she taught the children to speak English and play the piano. After hearing that her father was seriously ill; Edith returned home to look after him. She then decided to become a nurse. Afterwards for five years she worked in an English hospital where she proved to be highly professional at her job. A Belgian doctor was so impressed that he invited her to his country to organize a training school for nurses. The First World War broke out in 1914 and Edith Cavell's school of nursing became a hospital. She stayed there to look after the sick and wounded soldiers . Edith treated them with kindness. Between November 1914 and August 1915 she secretly helped about 200 wounded soldiers and prisoners escape from the Germans. Later the German army found out what Edith had done and they arrested her. Finally; the Germans killed her; but they could not _ . A tall statue has been built in Trafalgar Square; London; in honor of the brave English nurse. Question: Why did Edith return home from Belgium? Answer:
OPTIONS:
- Because she found work in an English hospital.
- Because she organized a training school for nurses.
- Because the First World War broke out.
- Because her father was seriously ill.

Answer:
Because her father was seriously ill.