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The previous paragraph says: in pain, bodies at breaking point, which connects with 'extreme' in the answer, and before the gap it says 'I beg to question this (pain)' which connects with 'BUT not dangerous'.

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The end of the previous paragraph makes a reference to the 'physical fluency', which is mentioned in the question. Besides, the question says 'the ballet dancers physicality is difficult to imagine for most people' , the text after the gap says 'But they (most people)'

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The text before the gap says 'the human body is designed to adapt to demands......carefully and over time' which is the same the question says 'pushing yourself to the limit, BUT not beyond'

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The text before the gap says ''in clas after class...practice makes perfect' and after the gap 'this daily repetition', both ideas of repetition connect with 'through endless tries' in the question.

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The question says 'no one avoids this' and after the gap it says 'Even the leading dancers have to do it'

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After the gap the text says 'this lengthy period' which refers to 'a decade of high-quality' in the question.

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Start whit (IT), the same that in the text

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Start whit (IT), the same that in the text

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specialy the last sentence

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The text explains that it is not necessary to break bones or tear muscles to achieve ballet positions. So ballet techinque is extreme, but it is not in itself dangerous.

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The text is informing us at the end of the paragraph about the process lenght and when it must take place. Owing to that fact, letter G fits the best.

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The key fact in gap 39, is the last line of the paragraph. Even the leading dancers have to do it, so no one avoids this, it is ballet's great democratiser.

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Letter A describes the mechanism by which we improve basic technique (practising and practising): through endless tries at the usual exercises and frequent failures, ballet dancers develop...

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Demands to human body must be made carefully. Because of that, letter E is the suitable option, as it explains that we must push ourselves to the limit, but not beyond.

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Maybe because it talks about people. And then, the sentence follows with, but they should not be misled. Who? -> People

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It is simply a question of sufficient conditioning of the muscular system = ballet technique

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"age of seven and my last 36 years"
"but for a ballet dancer in particular this length period"= decade of high quality

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the last sentence is the key

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"practice makes perfect", daily repetition= usual exercises and frequent failures, control accurate

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to adapt to the demands we make of it, add up to a fit= is identical in the gym- pushing yourself to the limit

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for most people to imagine-----> but they should not be misled

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Because the text talks about the idea that the dancers suffer pain and she wants disprove this, the technique os extreme but not dangerous

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The paragraph taks about long periods of timw

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Mentions repetitions and endless tries

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The previous paragraph talks about limits and demands and is comparable to the beginning of the gym

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In the texto os dais that you have to have a sufficient conditioning of the muscular system for not break the bones. So this want to said that the ballet is extrem but not dangerous

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The pharagraf talks about how long is the  ballet’s carrer and that the have to start practicing before of adolescence because it is the moment when they have more flexibility. And after, when you they are in theirs 30’s, they have to stop. So is the gap 38 because it is said that you need at least a decade of praticing to become an expert, so you have to start at an early age

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In the previous phrase it is explained the exhausting  task of ballet's dancing. On 37D answer it is enphasiced the hard task as a "extreme technique", but not dangerous. After the Full Stop of the linker phrase, the text explain the contstant training is possible to reach the demand "within the capaility of the helathy human body"

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In the previuos phrase, the writter expalin the training process of the professional ballet dancer, which was developed from the age of 7 to the age of 36 ( "29 years").
In addition on the next phase the writter point out the importance of "flexibility" (physical demand). According to this two liners, the best answer is "G" because it explain that takes at least a decade to become an expert and also putualized "phyical discipline"

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In this paragraph it is explained that there is no lesson's differences for experienced and beginers "those first classes i took were remarkably similar to the last". The "G" answer explain the democratized behaviour of ballet, where "the well stablished members of the compnay work alongside the new recruitments"

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In this paragraph it is emphasiced the essential need of repetition to reach the prefection. "A" answer gives a detailed explain about how it is possible.

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"Adapt to the demand" are the key word. It continues with the "E" answer as an analogy, levaing you to "bring the desired result". Moreover, the next phrase continues with the same idea with "add up to a fit-of-purpose"

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This is a difficult answer. Here the reader have to associate the technology with "hardship" and the phisicality of ballet dancers with "hard work"