智 课 网 S A T 备 考 资 料SAT官方每日一题20111015-智课教育出国考试SAT官方每日一题之写作-句子改错： Writing Identifying Sentence Errors The following sentence contains either a single error or no error at all. If the sentence contains an error, select the one underlined part that must be changed to make the sentence correct. If the sentence contains no error, select choice E. a (Formerly) called manacles or shackles, handcuffs b (consist of) two metal rings c (joined by) a short chain; once fastened shut, d (it requires) a key to open. e (No error) Answer Choices (A) A (B) B (C) C (D) D (E) E The correct answer is D ExplanationThe error in this sentence occurs at (D), where there is illogical pronoun reference. There is nothing in the sentence to which the singular pronoun “it” can logically refer. The plural pronoun “they” is needed to refer to the plural noun “handcuffs.”