The following questions present a sentence, part of which or all of which is und

游客2024-01-13  18

问题 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 written English; 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. [br] Since the average test score of students enrolled in charter schools were rising 7.5 percent in the spring, many educators concluded that the system was working.

选项 A、Since the average test score of students enrolled in charter schools were rising 7.5 percent in the spring, many educators concluded
B、As the average test score of students enrolled in charter schools rose 7.5 percent in the spring, with many educators concluding
C、Because the average test score of students enrolled in charter schools rose 7.5 percent in the spring, many educators concluded
D、Because the average test score of students enrolled in charter schools were up 7.5 percent in the spring, many educators concluded
E、With average test scores rising by 7.5 percent among students enrolled in charter schools, and many educators concluded

答案 C

解析 "Score" is a single noun, so the statements "score... were rising" in A and "score... were up" in D suffer from noun-verb agreement errors. The constructions "as with" in B and "with..., and" in E do not convey the causal relationship between the first and second clauses of the sentence that the statements imply, so these choices are inferior to C, which is grammatically and stylistically acceptable.
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