Read the following article and answer the question. Article: Many people hurt their backs when they try to lift heavy things from the floor. It is easy to hurt your back muscle when you try to pick up a heavy thing. However, there is a correct way to lift things from the floor. If you pick up heavy things correctly, you probably will not hurt your back. To lift something from the floor correctly, first bend your knees and lower yourself. Keep your back straight. Do not bent over, from your waist keep your back and hips and waist in a line. If you bent over, the muscles in your lower back can became hurt very easily. If you keep your back and hips straight, the muscles are stronger, because they hold up together. The other muscles can then help the lower back muscles. As you lower yourself, try to get as close to thing as you can, put one knee on each side of the thing. Remember at all times to keep your back straight. Put your hand under the thing that is in front of you, between y our knees. To lift the thing, you should stand up slowly. Use your leg muscles in order to stand up. lift with your legs, not with your back. Question: The muscles are stronger if you _ . Answer:

OPTIONS:
- keep your back, hips and waist in a line
- bend over from your waist
- lower yourself
- get down on your knees

Answer: keep your back, hips and waist in a line

Problem: OPTIONS:
- Wang Hui and his team spent 2 years making the digital pictures.
- The digital paintings cost Wang Hui 50,000 yuan.
- Wang Hui made this painting with some Chinese artists.
- About 400 artists wanted to buy the digital paintings.
Q: Read the following article and answer the question. Article: Art lovers around the world have thought about this question for so many years: what is the secret behind the Mona Lisa's smile? However, they can ask Mona Lisa herself in the interactive exhibition in Beijing. This exhibition brings the 500-year-old painting to life. Now Leonardo da Vinci's famous painting can move her head and wave her hand in 3D, and even answer questions. She can answer the questions about her life, her age and so on. But when she talks she doesn't speak Italian but Chinese like: "Da jia hao, wo jiao Mengna Lisha. Hen gao xing jian dao ni men." The new, digital picture of Mona Lisa is the center piece of the World Classic Interactive Arts Exhibition in Beijing. You can also see other world-famous paintings such as Leonardo da Vinci's Last Supper. Last Supper is another picture that they made alive with 3D. In this picture, Jesus can walk and talk with his believers . It took the organizer Wang Hui and over 400 digital artists in South Korea two years to make the picture, at a cost of around 50 million yuan. He says, "What's special about it is that it's the first time to use computer technology to make her speak and move." So what does the Mona Lisa say if you ask her why she is smiling? Question: Which of the following is TRUE? Answer:
Answer: Wang Hui and his team spent 2 years making the digital pictures.

Problem:OPTIONS:
- A few hours.
- About an hour.
- About half an hour.
- The whole night.

Read the following article and answer the question. Article: There was a man who had a little son. He loved him very much. Every day after work the man would come home and play with the little boy. When the man came home from work one night, he found that he had some extra work to do. And he wasn't able to play with his little son. He wanted to give the boy something to keep him busy. So, looking around his study, he saw a magazine with a large map of the world on the cover. He got an idea. He patiently tore the map up into pieces. Then he led his son into the dining room and spread the pieces on the table. He explained to the boy that it was a map of the world. He told the boy to put it back together and they could play together when he finished. Surely this could keep the child busy for hours, he thought. After about thirty minutes, the boy came to the man and said, "Okay, it's finished, Dad. Can we play now?" The man was surprised, saying, "That's amazing! How did you do that?" The boy said, "It was easy. On the back of the page was a picture of a man. When I put the man together, the whole world appeared completely." Question: How long did it take the boy to finish the work? Answer:
****
A: About half an hour.

Read the following article and answer the question. Article: A frog is born in a small river.When he is young,the river is his home.He doesn't know his parents,but he has hundreds of brothers and sisters.He swims about and plays with them all the time.At that time,he doesn't look like his parents.He has no legs and he has a big tail .So he looks like a fish. Later,his tail gets shorter and shorter.And he has four legs and a very short tail.He looks like his parents now. Then, he's going to eat a lot of bad insects . Question: Where is a frog born? Answer:
OPTIONS:
- On a farm.
- On the land.
- In the river.
- In the sea.
In the river.

Read the following article and answer the question. Article: Greg Heffely is 11 years old. He is a student. In his class, some students get to school on foot.. Some get to school by bus. He lives far from school. He always gets to school by car. He is clever and naughty He always has a lot of ideas .He likes writing diaries. In his diary, he often writes many interesting stories about his life. He also draws pictures in his diary. He has a lot of problems in school. And he makes a lot of trouble ,too. He runs away from a school basketball game. He often plays tricks on others. But he always makes a fool of himself. He is not good at making friends. But he wants to be the most popular in his school. He also has some problems at home. Sometimes he pulls the cat's tail and knock at others' door then run away. Greg is not a good model. We shouldn't do things like Greg. But US children like reading his diaries. Do you want to read about him ? Go and read the book, Diary of a Wimpy Kid(<<>> ). It is very popular in the US. Question: Greg Heffley often writes _ in his diary. Answer:
OPTIONS:
- a lot of interesting things about his country.
- his favorite places
- lots of interesting stories about his life.
- his favorite project at school.

Answer: lots of interesting stories about his life.

input with options: Read the following article and answer the question. Article: Today Han Mei's classmates are having an art lesson in the park. Now they are playing near the lake. The boy in black is flying a kite. He is Li Lei. The girl in red is reading a book. Who is she? Ha, she's just Han Mei. Lucy and Lily are twins. They look the same and they are dancing under a big tree. There is a boat on the lake. Mrs. Green and Mrs. Brown are in the boat. They are their teachers. And now the children are drawing pictures on the grass near the lake. The teachers are teaching how to draw pictures. But what is Joe doing? Oh, he is looking for his pencil case. Question: Why are the children in the park today? Answer:
OPTIONS:
- They have no classes today.
- They like playing in the park.
- They're having a class.
- Their teachers like boating.
output:
They're having a class.