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.

[Q]: Article: Four Efficient Ways to Improve Your Speech 1. Use More Facial Expression One psychologist feels that our facial expression is responsible more than anything else for the impression others have of us. In fact, more than 50 percent of another's impression, he believes, is influenced by the look on your face. Naturally a smile in which the eyes participate is extremely communicative. An unfriendly look often brings the same thing in return. People tend to mirror your expression, so try to show how you feel about a topic or an idea or the audience through your facial expression. 2. Rid Your Inner Fear It's natural to have some tension or nervousness when you appear before an audience. The way to handle it is to put it to work for you, get into action, as Shakespeare observed, action cures fear. There are only a few known ways to control fear. The first is to admit it, do the thing you fear and it will be the death of fear itself. Another simple aid at the last minute before you begin, is to take a few deep breaths, this will help get the butterflies in formation and also keep your voice under control. In fact, if you're thoroughly prepared, just taking a few deep breaths before you're introduced will give you added confidence and balance. Other known ways to control nervousness and fear are to give yourself an encouraging talk or take some physical exercise. 3. Polish Your Voice Our voice is the main instrument we possess for communicating with people, we're all sound sensitive. So invest in a tape recorder, practise your speech by speaking it into the microphone then listen to it. You can even have others join in the evaluation of your strong points and your weaknesses or faults as well. Remember that Demosthenes and Winston Churchill both used pebbles in their mouths while practising their speaking. Simply reading out loud can also help you improve your voice and develop a personal style. 4. Strengthen Your Memory Psychologists tell us that most individuals don't use above ten percent of their natural capacity for memory, that's comparable to trying to run a car on one cylinder . Why do most people use so little of their power of memory? Because they don't practise the fundamentals of remembering. First and most important, it's necessary to have a burning desire to remember, it's difficult to recall anything without wanting to do so. Step number two is concentration. Henry Ward Beecher once observed, one hour of intense concentration can accomplish more than years of dreaming. The next principle is repetition, we learned many things in school by rote by repetition, when you hear a name for the first time repeat it, spell it, write it down, review it, you'll soon know it by heart.
Answer: words
[A]: To make a good impression on others, you should pay special attention to your _ .

[Q]: Article: Australian scientists say an organic compound used by Indian women to paint dots or bindi on their foreheads could hold the key to a breakthrough in cancer treatment. Rose Bengal was first used in the early 1900s as a dye for food, textiles and cosmetics. But now it is proving to be a useful weapon in the fight against skin cancer. Television advertisements constantly warn of the dangers of overexposure to the fierce sun. Among them is the possibility of the disease melanoma , a type of skin cancer. More than 1,200 Australians die every year from the disease. Initial trials of a solution of Rose Bengal injected into some melanoma cells have had a 75 percent success rate in controlling the disease. Professor John Thompson, the director of the Melanoma Unit at the University of Sydney, says this organic dye could become a powerful cancer-fighting treatment. "We believe it works by getting into the tumor cells and causing them to self-destruct. But the exact mechanism by which it works is not totally clear. It's not useful for people who have a primary melanoma. The treatment of primary melanoma is surgical excision ,"he said. "It's useful to inject tumors for people who have recurrences; when the primary treatment has failed and when recurrence in the area, or at more distant sites has occurred." About 90 percent of Australians who develop melanoma survive thanks to early diagnosis and treatment. If left untreated, however, the disease can be fatal. Convincing younger people in Australia about the dangers of overexposure to the sun is a battle campaigners are constantly waging. Veronica Manock, a 21-year-old student, had two major operations to remove a cancerous tumor from her leg. "I've had a lot of friends who just said 'I thought it was just, you know, I'll get a mole cut out and that's it', whereas I don't think people realize how much danger they're putting themselves into and how easy it is to stop something like this happening to you just from doing little things,"said Marock. Other researchers in Australia are investigating genetic treatments to skin cancer. There is a pressing need for such research to produce effective treatments. Australians, the majority of whom are fair-skinned , are four times more likely to develop a melanoma than people in Canada, the United States or Great Britain.
Answer: it can be effective in treating skin cancer
[A]: The information about Rose Bengal is wrong EXCEPT that _ .

[Q]: Article: Towards the end of Middle English, a sudden change in pronunciation started, with vowels being pronounced shorter and shorter. From the 16th century the British had contact with many people from around the world. This meant that lots of new vocabulary entered the language. The invention of printing also meant that there was now a common language in print. Books became cheaper and more people learned to read. Spelling and grammar became fixed, and the dialect of London became the standard. In 1604 the first English dictionary came out. Early Modern English and Late Modern English are mostly different in the number of words. Late Modern English has many more words, mainly because of the following two reasons: First, the Industrial Revolution led to the need for new words. Second, the British Empire covered one quarter of the earth's surface, and the English language took in foreign words from many countries. From around 1600, the English colonization of North America led to American English. Some English pronunciations and words " _ " when they reached America. In some ways, American English is more like the English of Shakespeare than modern British English. Some expressions that are called "American English" are in fact from British expressions. They were kept in the colonies while lost for a time in Britain. Spanish also had an influence on American English. For example, words like canyon, ranch, stampede and vigilante are from Spanish. They entered English by the people of Spain who settled in the American West. French words and West African words also influenced American English. Today, American English has a greater influence, because of the USA's movies, television, popular music, trade and technology.
Answer: vocabulary
[A]:
The main difference between Early and Late Modern English lies in _ .