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In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.
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Article: Hundreds of years ago, a Roman army came north from England to make war on Scotland. The Scots, a brave people, love their country. They fought hard to drive the enemy out of Scotland. But there were too many of the Romans. It looked as if the Romans would win. One night, the leader of the Scots marched his soldiers to the top of a hill. "We will rest here tonight, my men," he said, "Tomorrow we will fight one more battle. We must win, or we will die." They were all very tired. So they ate their supper quickly and fell asleep. There were four guards on duty, but they were very tired, too, and one by one, they fell asleep. The Romans were not asleep. Quickly they gathered at the foot of the hill. Slowly they went up the hill. Closer they came to the sleeping Scots. They were almost at the top. A few minutes more the war would be over. Suddenly, one of them put his foot on a thistle . He cried out and his sudden cry woke the Scots. In a minute they were on their feet and ready for a battle. The fighting was hard, but it did not last long. The Scots wiped out the Romans and saved Scotland. The thistle is not a beautiful plant. It has sharp needles all over it. Few people liked it. But the people of Scotland liked it so much that they made it their national flower.
Answer: came to the north Scotland from England to make war on Scotland
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Hundreds of years ago, the Romans _ .

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Article: Clothes can make phone calls, play music, dial your pal's number, keep you warm during cold weather and operate your computer? This is not a fantasy. A British company, called Electrotextiles, has created a wide range of clothes -- clothes that have minds of their own! Scientists, working for the company, have invented a kind of fabric that can be blended with flexible electronic materials to create intelligent clothing. The result are electronic garments. If you think the wearer has to be wired to different devices, think again. These designer clothes are wire-free, soft to touch and washable!! Like any electronic device, these high-tech clothes have to be powered. Currently, a tiny nine-volt battery serves the purpose. But the researchers hope that in the near future the clothes will generate electricity by using body heat. These clothes are 100 percent shock proof, they say. The Electrotextiles team has also created the world's first cloth keyboard. This keyboard can be sewn into your trousers or skirt. To use this device, you will have to sit down and tap on your lap! These 'lap- tap' gadgets are all set to take over laptop computers! Another useful garment is the shirt-cum-mobile phone. This handy invention enables drivers to chat comfortably with others at the wheel! Other popular electronic wear include the denim jacket with flexible earphones sewn into the hood and the electronic ski jacket with a built-in heater. The ski jacket is also programmed to send signals to a satellite. This technology is known as global positioning system and can be used to track lost skiers and wandering kids. Having completed the cloth keyboard, scientists have already started to work on a new project--a necktie that can be used as a computer mouse. What is the next? Do you have any idea?
Answer: they use electricity as power
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. The electronic garments are similar to other electronic devices in that _ .

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Article: There are two kinds of changeschemical change and physical change. In a chemical change, there is always a new substance formed. Breaking up water into hydrogen and oxygen is a chemical change. In each of the chemical change at least one new substance is formed. A change is not a chemical change if it doesn't form a new substance. Physical changes are very common, too. There are many examples. You can make a physical change by tearing a piece of paper into two, or by cutting a piece of iron with lathe . Here paper is still paper, and the iron is still iron. Another way of making physical change is dissolving something in water. When you dissolve salt in water, the salt disappears. You may think that a new substance has been formed. But really there is no new substance. The salt is still salt. You can still taste it. So the dissolving of anything is a physical change. When water freezes, the change is also a physical one. The water changes from liquid to solid, but it is still the same substance. That is why the freezing of anything is a physical change.
Answer: nothing new
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In a physical change _ .is formed.