input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Three kids have been learning chemistry for only a few months. But they have already begun to challenge a world famous scientist! Li Weichi, Huang Runling, and Xiao Yan are from Zhongshan Huaqiao Middle School in Guangdong. They have just found a red cabbage that could be a new kind of acid-base indicator . They want it to take the place of litmus paper. "We've learnt to think of and ask questions about life by ourselves," said Li, "We work well with each other." British scientist Robert Boyle discovered the use of litmus paper over 300 years ago. Now it is used widely in experiments all over the world. But when the kids did some experiments in class last winter, they saw that the litmus paper didn't turn very blue with base matter. It's hard to get a clear result. Will there be a better indicator than litmus paper? The three kids decided to try and find out! How? They went to collect over 40 plants in parks, gardens and markets. Then they ground leaves, flowers and stems to get the pigments from them. The kids mixed pigments with acid and base. They spent months watching carefully to see which paper showed the best colour change. They decided it was the litmus paper! "It's our first scientific journey, Huang said, "But it makes me want to try harder." Options: A red cabbage B litmus paper C any plant D any flower Answer: B litmus paper Question:???
output answer: What is widely used as the acid-base indicator now?

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: School news (June 8th, Friday) School trip: Students in Junior Two had a great time during the school trip on Children's Day. They went to Ocean Park by bus. The teachers were very happy because the students cleaned the bus after the trip. Japanese visitors: Thirteen visitors from Japan arrived at our school on Monday, June 4th. They visited our school and enjoyed the weekend party with teachers and students. Basketball world: The school basketball match will be held tomorrow. Both Team Five and Team One hope to be the champion . Who do you think will win? Talent show : There will be a talent show in our school on June 15th. Lots of students will show their talents by singing, dancing and playing the instruments at the central hall. Options: A talent show B school trip C basketball match D weekend party Answer: C basketball match Question:???
output answer: The players in Team Five and Team One will take part in the _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: One day Mrs. Wilson went shopping with Tracy and Ben. They went to the supermarket in the new shopping center." Why do you buy things here?" Tracy wanted to know. "Because they are cheaper here than at the corner store near our home," Mrs. Wilson said." Help me check the prices, please." The Wilsons were not rich and Mrs. Wilson was always careful with her money. She looked carefully after the prices of things. She bought lots of things in the supermarket. When they got home, the children said," We don't think you saved money by going to the supermarket." "Of course I did," Mrs. Wilson said. " Everything was cheaper there." "We know," the children said," but we came home by taxi because we had too much to carry. The taxi fare was more than the money that you save! " Mrs. Wilson added everything up. Her children were right. Options: A happy B clever C tired D lazy Answer: B clever Question:???
output answer: From the passage we know the children were _ .

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Ancient Egypt was one of the greatest civilizations in the history of the world. It lasted for over 3000 years from 3150 BC to 30 BC. Looking nice and being clean was very important to the Egyptians. Most men and women wore jewelry of some type. The rich wore jewelry made of gold and silver, while the poorer people used copper. Because it was so hot, most people wore white clothes. Men wore kilts and women wore a straight dress. Ancient Egypt was a complex society needing people to do many different tasks and jobs. Most of the people were farmers. They grew their crops near the banks of the Nile River where the rich black soil was good for crops. There were different kinds of craftsmen jobs. How skilled a craftsman was would determine his success. Most of the soldiers were footmen. In peacetime, soldiers would help with government projects such as moving stones for a pyramid . Scribes were important people in Ancient Egypt as they were the only people who know how to read and write. Scribes came from wealthy families and took years of training to learn the Egyptian hieroglyphics . Options: A the white clothes looked clean B they were ordered to wear like that C they were too poor to buy colorful clothes D the weather was very hot then Answer: D the weather was very hot then Question:???
output answer:
In ancient Egypt, most people wore white clothes because _ .