The following questions present a sentence, part of which or all 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.
These questions test correctness and effectiveness of expression. In choosing your answer, follow the requirements of standard writtenEnglish; that is, pay attention to grammar, choice of words, and sentence construction.Choose the answer that produces the most effective sentence; this answer should be clear and exact, without awkwardness, ambiguity, redundancy, or grammatical error. Many doctors direct their patients to name-brand drugs, but smart consumers know that generic drugs cost half as much as buying name-brand drugs. A、generic drugs cost half as much as buying name-brand drugs B、buying generic drugs costs half as much as name-brand drugs C、generic drugs cost half as much as name-brand drugs D、buying generic drugs cost half as much as buying name-brand drugs E、to buy generic drugs costs half as much as buying name-brand drugs
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