1) No, it is usually not necessary unless it is some special word or specific, word-by-word copied phrase. By putting quotes around these words you are stating very clearly that these are not your words; you only copied them; don't blame the messenger. People will think you disagree with the word.
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If you're having troubles with rewriting your paper but there's no one around who could help you, then using a
professional paraphrasing tool is the best option for you. Doing that on your own would be even better but if you're out of time and you want to save your nerves, use a tool or hire an expert who will do it with top-notch quality. Whatever you choose, remember that it's criticalHave you ever faced writing academic papers? If yes, then you know how hard it is to to make your project look professional and unique. As most topics given to the students have been already explored before, we search for previous researches in order to get an overall idea of what to talk about in your own paper. Using other writers' ideas is permitted but you should always give proper referen