Read the following article and answer the question. Article: Have you ever tried to understand something new on your own but found it a bit too difficult in books or on the Internet? Don't be worriedyou can get help at Khan Academy . Khan Academy is an online learning website created in 2007 by Salman Khan, an American teacher. In order to provide "a free world-class education to anyone anywhere",Khan offers more than 4,200 free micro lectures atkhanacademy.org. The classes cover fields like mathematics, biology, chemistry and finance. They usually last for just 10 to 15 minutes. Unlike traditional classes, Khan mainly offers courses for students below college level. The classes can also help those who are planning to take the SAT, an exam often required for students who wish to enter a college or university in the US. So how can you start your learning journey at Khan Academy? First of all,enter the website with a personal e-mail account .Your personal homepage at Khan Academy is designed to help you learn math. You can take a pre-test first to see your level. The academy then suggests exercises at the right level for you. It also allows you to watch videos and improve yourself until you reach level 5the highest level. If you are interested in other subjects, click "LEARN" to see all topics on offer. Try "Art History",for example. This will take you to all the things in that area like text articles, videos and questions. You can also put key words into the search box to see related topics. Don't worry if you find it difficult to follow the courses in English. The courses have been translated into other languages, such as Chinese. Hundreds of Khan's courses in Chinese can be found on Netease (www. 163. com),which offers translations of courses from Harvard, Yafe, Oxford,Cambridge and other top universities. Question: Khan Academy is a learning website that _ Answer:

OPTIONS:
- was started by an American teacher
- has a history of over 10 years
- doesn't provide free lectures
- is fit only for college students

Answer: was started by an American teacher

Problem: OPTIONS:
- Jeff was very kind and friendly to them
- they could get money and do something they enjoyed
- they could play soccer from morning to late night
- they did a good thing for Jeff
Q: Read the following article and answer the question. Article: There was a big garden in front of Jeff's house. So on weekends, many children came to play soccer from morning to late night. They made a lot of noise, so Jeff couldn't do anything. He thought hard and had an idea. One Saturday evening, he went out and said to them, "It is my happy time when I see and hear you playing here. So I will give you fifty yuan a week if you play in the garden here," They felt very happy and on Saturday evening they came to Jeff's house and asked for the money. He did so. The second week, Jeff said he didn't have enough money and only gave them twenty yuan. The third week Jeff said he lost his work, but he gave them only 10 yuan. And the boys were very _ . The fourth week Jeff said he was looking for his job. He gave them only five yuan. And said he couldn't pay them fifty yuan a week. But he would give them two yuan each week. After that, the boys never played in the garden again. Question: Children felt very happy at first because _ . Answer:
Answer: they could get money and do something they enjoyed

Problem:OPTIONS:
- sea rising
- climate change
- nature's unbalance
- people's activity

Read the following article and answer the question. Article: April 22 is Earth Day. Everyone on Earth should care about and protect the earth! The earth has warmed by about 1degF over the past 100 years, but why and how? Well, scientists are not quite sure. Maybe the earth gets warmer and warmer on its own. But many scientists say that people are doing many things which makes the earth warmer. First, greenhouse effect is a very important reason for the change of the earth. People give out too much energy into the air every year. It makes the earth warmer. Climate change is another important reason. Sometimes it becomes too hot and sometimes too cold. Sometimes there is too much rain and sometimes too little. The change of the climate makes the earth warmer. In turn, the warmth of the earth changes the climate, too. When the earth becomes warmer, there may be more rain and a rise in sea level. It will affect the growth of plants, animals and people. On a Pacific island, 100 people have to move to higher ground because the sea is rising. These people can no longer live on the coast. Before that, two islands without people went underwater in 1999. Scientists say that the seas can rise by nearly one metre by 2100. People can affect the earth's air, land and water. As for us, we can do many things to protect the earth. For example, we can use fridges less. We can tell more people about protecting the earth. Question: Greenhouse effect comes from _ . Answer:
****
A: people's activity

Read the following article and answer the question. Article: Li Siyi, a student from Jinan Foreign Language School, takes up a new habit. She refuses to believe everything that she reads. "Not everything in books is true," she said. Many other students in her school think the same thing as Li. They learned this through finding a mistake in their Chinese textbook. They learned a Tang poem, Ci Beigu Shanxia, last year. There was a picture that showed a boat in full sail on a river. "But according to the famous line from the poem, feng zheng yifan xuan, the sail shouldn't be spread ," said Zhang Jiayi, Li's classmate. To get the right answer, the students turned to their Chinese teacher, Liu Yan. Liu and the students looked up books, searched on the Internet and made sure that the People's Education Press had really made a mistake about the picture. The students wrote a letter to them about the mistake. "I think my students did a right thing but I never expected a reply," said Liu. "I took it as a way of letting them know the importance of spirit of questioning." To their surprise, one month later, they got the reply from Gu Zhenbiao, the expert of Chinese textbooks in middle schools. Gu said sorry for the mistake and he also said he really thinks the students are very great. When Liu read the letter loudly to all the students, everyone was excited. "We are very happy we have our own ideas!" said Li. Question: Who replied to the students? Answer:
OPTIONS:
- Liu Yan.
- Gu Zhenbiao.
- Zhang Jiayi.
- The People Education Press.
Gu Zhenbiao.

input with options: Read the following article and answer the question. Article: My favorite month is May, because there are many events in this month. May 1 is Labor Day . We have a three-day holiday . We can have a trip. We have an Art Festival on May 8 in our school. We like it very much,we like to show our pictures. May 12 is my good friend Linda's birthday. We have a big birthday party for her . On May 20 , we have an English party. We often have in the evening. We have a book sale in our classroom on May 28 . It's very interesting. Question: According to this passage , there are _ events in May. Answer:
OPTIONS:
- 2
- 3
- 5
- 7
output:
5