Directions: This question presents a sentence, all or part of which is underlined. Beneath the sentence you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others.

While nature takes millions of years to effect even a minor change, human being is trying to evolve these evolutionary changes in decades, but one should be ready for the ill effects of the haste.