Even though you often find paraphrasers as an easy option, always best avoid it if it comes to academic writing. Vague answers, solo work, or very few words can all create confusion and make your paper difficult to read. This is because when the audio/sound is carefully and clearly understood, the audience will hardly strain to concentrate on some of the phrases. Other than the cost, which is expensive, it is also not wise to re-write the same sentence several times.