Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: When can I get a cell phone?" The answer is when your parents think you need one, though many kids seem to be getting them around age 12 or 13. Some younger kids may have them because their parents see it as a matter of safety and convenience. For example, a kid can call mom and dad when sports practice is over. And a cell phone can give kids almost instant access to their parents if something goes wrong or they need help. It can give parents quick access to their kids so they can check on them and make sure they're OK. If you do get a cell phone, make some rules with your parents, such as how many minutes you're allowed to spend on the phone, when you can use your phone, when the phone must be turned off, and what you will do if someone calls you too often, and so on. You'll also have to learn to take care of the phone in your life. Keep it charged and store it in the safe place so it doesn't get lost. And whatever you do, don't use it in the bathroom. I know someone who dropped her phone in the toilet! Options: A Parents who have bought phones for their kids. B Someone who does cell phone business. C A teacher who cares most about school safety. D Someone who works for children's education. Answer: D Someone who works for children's education. Question:
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The answer is:
Who is the passage most probably written by?

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Antifreeze is a liquid that is added to water to keep it from freezing. When water freezes and turns to ice,it expands .The force of water expanding is so great that it will break the hardest metal.Water is used in car engines to keep them cool while they run,and if this water is allowed to freeze in winter it can break the iron block of the engine.That is why antifreeze is necessary. Water freezes at 0degC;the usual kind of antifreeze will not freeze until the temperature is-40degC.A mixture of five parts of water and four parts of antifreeze will prevent freezing at-18degC;four parts of water and five parts of antifreeze reduce this to -22degC. Alcohol is a kind of good antifreeze,but when the air is running it becomes hot and the alcohol boils away,so it must be changed very often.Most people use antifreeze that does not boil away when the engine is running.There are several chemicals that do this.One of the most popular is called ethylene glycol. Options: A keep alcohol in water B stop ice from becoming water C make the freezing point of water lower D raise the freezing point of water Answer: C make the freezing point of water lower Question:
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The answer is:
We use antifreeze in order to _ .

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: May 5 is Japanese Children's Day. In fact, it is usually called Boy's Day because it is mainly celebrated ( ) by boys. The celebration of Boy's Day has a long history. It is said that the festival comes from the Dragon Boat Festival in China. On Boy's Day, Japanese boys eat a special kind of rice cake. It is covered with a leaf and filled with bean paste ( ). Children love to eat it very much. On this day, children don't have to go to school. Each family with a boy hangs up huge carp-shaped flag ( ). The flags are usually three colors: black, red and blue. Black stands for the father, red stands for the mother and blue stands for the son. Japanese parents believe that the flags will bring their boys good luck and give them courage and power. Options: A bring their boys good luck B give their boys courage. C give their boys power D All the above. Answer: D All the above. Question:
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The answer is:
Japanese parents believe that the carp-shaped flags will _ .