Read the following article and answer the question. Article: When the traffic lights turn red, we will stop driving a car or crossing a street. Why is red used for traffic lights instead of other colors? As we know, scattering happens when light goes through the air. For the same media , if the _ is long, the sscattering will be short. If the wavelength is short, then the scattering will be long. Of all lights we can see, red has the longest wavelength. So the scattering is the weakest. That means the red light travels far. In fact, it travels farther on rainy days. Using the red light can help drivers in farther places see the lights. It helps drivers slow down or stop in time. So there will be fewer accidents. Moreover, red can also excite people. We can act more quickly when we see the color red. In a word, red lights help drivers stop in time and help prevent accidents. Question: Which of the following is the best title? Answer:

OPTIONS:
- Why do accidents happen
- How does the red light travel
- Why do we use red traffic lights
- The colors of the traffic lights

Answer: Why do we use red traffic lights

Problem: OPTIONS:
- was interested in her activities
- went sightseeing with her
- had two white daughters
- was very kind to her
Q: Read the following article and answer the question. Article: "Homestay is a form of study abroad program. It allows the visitor to rent a room from a local family to better understand the local lifestyle. It also helps to improve the visitor's language ability,"said a teacher during a school meeting last term. "Students who wish to learn more about foreign cultures or to get foreign experience should join this kind of holiday. I am sure you won't be disappointed ." After this special meeting,I always thought about this kind of holiday. Last month,I had a chance at last to go on such a holiday with some of my schoolmates and we went to London,a place where I had wanted to go since years ago. As we were still young,we had a group leader who planned things for us and looked after us. After we got to London,we went to stay with different families. I was lucky that my host family was a white couple who had a daughter about my age. They treated me as a daughter of their family during my stay there. They were interested in me and I learnt a lot of things from them,too. The holiday was filled with activities every day. After breakfast,a local teacher would come to take us in his car. Then we would have classes or go on a sightseeing trip to different places of interest like the Big Ben,the London Bridge,and the Buckingham Palace. We would go back to our own homes after the activities. The holiday was a valuable experience for me. I enjoyed every minute of it. Yet,time really flew fast. Three weeks later,we had to leave "home" for Hong Kong. Question: The writer's host family _ . Answer:
Answer: was very kind to her

Problem:OPTIONS:
- They should let children do things by themselves.
- They should give a safe life to their children.
- They should give more love to their children.
- They should teach their children how to deal with other people.

Read the following article and answer the question. Article: If babies are given more love and feelings by their mothers, they will deal better with stress and anxiety when they grow up , research has shown. The study of eight-month-old children shows even the very earliest life experiences can influence our happiness. Lots of mother love makes children form a safe bond with their mothers , so they are able to feel safe in relationships when they grow up ,and they will have better social skills and deal with life's difficulties. The researchers, led by Dr.Joanna Maselko of Duke University in North Carolina, studied the relationships of 482 eight--month - old babies with their mothers during daily development. They studied how well the mother had dealt with her child's developmental text and how she had responded child's performance.Mental health was then assessed when the babies had grown up - at the average of 34. The more feelings and attention a mother gave to her child, the better her child would be. This kind of child had the lowest levels of anxiety, hostility and general difficulties. Question: What should many mothers do? Answer:
****
A: They should give more love to their children.

Read the following article and answer the question. Article: Mr. Brown is a very old man. Every morning he goes for a walk in the park. And he comes home at 12:30 for his lunch. But today a police car stops at his house at twelve o'clock. Two policemen help him out. One of them says to Mr Brown's daughter," The old man can't find his way in the park. He asks us to take him home in the car." The daughter thanks the policemen. After they leave, she asks her father, " Dad, you go to that park every day. But today, you can't find the way. What's wrong with you?" The old man smiles like a child and says, " I can find my way home. I don't want to walk home today, you know?" Question: Every day Mr Brown comes home at _ . Answer:
OPTIONS:
- twelve
- eleven
- twelve thirty
- twelve ten
twelve thirty

input with options: Read the following article and answer the question. Article: Long long ago in England, there lived a man named Robin Hood. Robin Hood lived with other men in a forest, Sherwood Forest. Robin Hood was a thief -- a different kind of thief. He stole from the rich and gave what he stole to the poor. Poor people didn't need to worry about going into Sherwood Forest. Robin Hood often gave them money. Everyone in England knew about Robin Hood. The king was angry! He didn't want a thief to be a hero. He sent his men to Sherwood Forest to catch Robin Hood. But they weren't able to catch him. The king wanted to meet Robin Hood and knew what kind of person he was. One day, he dressed himself up as a poor man, and then he went to Sherwood Forest to see Robin Hood. After the king talked to Robin Hood, he liked him very much. He said, "I like you very much, but I have to tell you the _ .". He told Robin Hood who he really was. Robin Hood was not angry. He laughed and laughed. The king invited Robin Hood to come and live in the castle. The castle was 20 miles away. Robin had to walk south, cross a river, turn left and then turn left to get there. Question: Why did the king go to Sherwood Forest? Answer:
OPTIONS:
- Because he wanted to invite Robin Hood.
- Because he wanted to meet Robin Hood.
- Because he wanted to laugh at Robin Hood.
- Because he wanted to catch Robin Hood.
output:
Because he wanted to meet Robin Hood.