input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Frogs are animals that can live both in water and on land.There are more than 5.000 kinds of frogs on the earth.The earliest known frogs lived about 190 million years ago and the frogs today still look the same.Here are some fun things that you might not know about frogs.Enjoy! The Biggest and the Smallest Frogs Some frogs can be very big.The biggest kind of frog is the Goliath Frog in West Africa.Its body can be nearly 30cm long,about the size of a large cat.The Gold Frog and the Poison Frog are the smallest frogs in the world.They are less than lem long.Though the Poison Frog is very small,it is not weak at all.It is dangerous.Any animal that eats it will die very soon. The Best Jumpers Frogs are very good at jumping.They developed jumping legs so that they would not be eaten by other large animals.Using their big strong legs,most frogs can jump over 20 times their own length.It is like a person jumping over about 30.48m.The Australian Rocket Frog can even jump over 2m,which is 50 times its body length(5.5cm).That might be the reason why frogs are called the best jumpers on the earth. The Cryogenic Animal Some frogs like the Common Wood Frog have a special ability to live in very cold places.When the temperature goes down,they become ice frogs.2/3 of their body water freezes.Their hearts stop,and their breathing stops too.You may think they are dead,but in fact they are not.Maybe we humanscan learn thc way that the frogs do for medical purpose. Options: A It will die very soon. B It will be an ice frog. C It will become dangerous. D It will become very small. Answer: B It will be an ice frog. Question:???
output answer: What will happen to a Common Wood Frog at very low temperatures?

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Sharks are the most frightening animals in the sea. Sometimes we can see sharks swimming in the sea around Hong Kong. People put nets around some beaches to protect swimmers. When there is a "shark's flag", people must slay on the beach. It will be too late if a shark can swim sixty kilometers an hour to you. There are 30 kinds of sharks and 25 kinds of them are dangerous. The whale sharks are very big. They can grow to 18 meters long, but they are not dangerous to people. The jaws and the tiger sharks are the most dangerous kinds of sharks. Do you know all sharks must keep swimming, or they will go down? All sharks can feel everything that happens around them. We must keep _ and don't make any noise when a shark is swimming near you. If a shark loses a tooth, a new one will grow out very quickly. So sharks always have many sharp teeth. Options: A To keep swimmers running. B To keep swimmers swimming. C To keep swimmers safe. D To keep sharks swimming. Answer: C To keep swimmers safe. Question:???
output answer: Why do people put nets around some beaches?

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: How does Lucy spend a week? Monday Practice playing volleyball 3:00-5:OOp.m. Tuesday Go to see Tim Children's Hospital 8:30-10:30p.m. Wednesday Part-time job 1:00-5:00 p m. Thursday Go to the station to meet her uncle Ricky 9:00 a.m. Friday See Mr Green 10:30-11:30 a.m. Part-time job 2:00-6:00 p.m. Saturday A birthday party for Lily 7:00-10:00 p.m. Sunday Help Frank with his Maths Options: A At Frank's house. B At Lucy's house. C At the station. D In the hospital. Answer: D In the hospital. Question:???
output answer: Where does Lucy meet Tim?

input question: Write a multi-choice question for the following article, with the given choices and answer: Article: Once upon a time there lived two brothers named Jacob and William in Germany. They liked to listen to old stories and then write them down. So they had enough stories to make a book. You can guess the name of the book! It is Grimms' Fairy Tales. The story of this little book began when the brothers were still in school. And it started with a good teacher. The teacher liked to find out how things happened. Soon the two brothers were doing the same thing. They asked questions and then looked for answers. Among the questions the brothers asked, "Who made up the old fairy tales? Who first told about Cinderella ? Why made up the story of the Snow White and the story of Sleeping Beauty?"They found that no one knew the answers to such questions. The tales were made up in very early times. Most of them were made up in the days before people knew how to write. People told the stories to one another and to their children. But only a few old people still remembered them. "When old people die, the stories will die with them," said the brothers. "We must write down all the stories we can find." Jacob and William hunted for stories for five years. At last they had 89 tales written. Just before Christmas in 1812, the first book was published. People love the book! They asked more fairy tales. So Grimms put tales into two more books. In all, they collected 210 stories to put into their books. Options: A their teacher asked them to do so B their parents asked them to do so C they liked all stories very much. D they didn't want to the stories to die with the old people Answer: D they didn't want to the stories to die with the old people Question:???
output answer:
The two brothers wrote down all the stories because _ .