SAT I 每日一问：2013年7月15日

Writing > Improving Sentences

Part or all of the following sentence is underlined; beneath the sentence are five ways of phrasing the underlined material. Select the option that produces the best sentence. If you think the original phrasing produces a better sentence than any of the alternatives, select choice A.

In just a couple of years, low-carbohydrate diets have accomplished what the government has failed to do in decades of trying: it has convinced the public of refined grains, that they are bad and whole grains are good.

(A) it has convinced the public of refined grains, that they
(B) convincing the public about refined grains, which
(C) convince the public that refined grains
(D) convinces the public of refined grains, they
(E) convincing the public that refined grains

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