2015年9月12日SAT官方每日一題

　　標題範例：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.

　　Before she became a major rock star capable of filling stadiums, she sings in little-known clubs and as a back-up singer for other acts.

　　(A) sings

　　(B) has sung

　　(C) is singing

　　(D) had sung

　　(E) has been singing

　　謎底：D

　　【剖析】

　　Choice (D) is correct. It avoids the verb tense error of the original by providing the past perfect tense verb phrase “had sung” to indicate an action that was completed before another action (e.g., “became a major rock star”) in the past.