1) Focusing on the negative, as one does when seeking revenge and trying to get back at someone, can be both physically and mentally harmful. (2) For example, you may become so tense with negative emotions that you constantly tighten your back muscles. (3) This could eventually lead to problems. Why should the underlined words in sentence 1 be revised? Which revision should be made to the underlined words in sentence 1? Why should the underlined word in sentence 3 be revised? Which revision should be made to the underlined word in sentence 3?

nobody can deny that cars are the most used means of transport all over the world. however owing a car could have some disadvantages. first of all, having a car on your own allows you to go everywhere without depending on timetables. moreover, you can use it whenever you need it no matter the time or the climate conditions. furthermore, if you have a car, you would not have to wait for nobody to share it when going to somewhere. nevertheless, one major disadvantages of owing a car is the fact that fuel is very expensive nowadays so that not everyone can afford it. in addition, you have to pay insurance to be protected by legal conditions. apart from this, the person who owns a car always has to maintain the car and repair any mechanical problem which could costs a huge amount of money. what is more, if you have to travel long distances, and you do not like driving, one probably would be exhausted and irritated due to driving for a long time. besides, cars cause environmental pollution. to sum up, owing a car means that you have more freedom to travel whenever and wherever people want to, however the car maintenance could be a very expensive issue that can have bad consequences at your economy.

recent brain research has shown some surprising benefits as a result of formal musical training. learning to play a musical instrument appears to develop parts of the brain that can even influence academic results. the studies indicate that the earlier a child begins training, the more benefits there are. one such study showed that children who began musical studies before the age of seven had a more developed brain in the region where language production and auditory processing take place. scientists believe there is mounting evidence to show that early musical training can improve brain function.

explanation:

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the answer is: overall, deluca's wide-ranging evidence will prove that rock lyrics are indeed poetry.

in the writing "dylan's nobel prize settles debate: rock lyrics are poetry" by dan deluca, he is telling about the awards that dylan received, he got the nobel prize in literature, recognizing his rock song letter as poems, in this case deluca use this to support his argument that rock lyrics are poetry.