49. Many house builders offer rent-to-buy programs that enable a family with insufficient savings for a conventional down payment to be able to move into new housing and to apply part of the rent to a purchase later. (A) programs that enable a family with insufficient savings for a conventional down payment to be able to move into new housing and to apply (B) programs that enable a family with insufficient savings for a conventional down payment to move into new housing and to apply (C) programs; that enables a family with insufficient savings for a conventional down payment to move into new housing, to apply (D) programs, which enables a family with insufficient savings for a conventional down payment to move into new housing, applying (E) programs, which enable a family with insufficient savings for a conventional down payment to be able to move into new housing, applying Rhetorical construction In a lengthy sentence consisting of many phrases, it is essential to determine which phrases and words are necessary to the sentence and which words may be eliminated because they are unnecessary The relative pronoun that correctly refers to programs and introduces the subordinate clause; family is followed by two phrases that are clear and correct. To be able to move, however, is needlessly wordy, repeating the meaning of enable, and can be reduced to to move. This creates a parallel construction in which programs ... enable a family ... to move ... and to apply. A To be able to move is wordy; to apply is not logically parallel to the infinitive phrase (able) to move B Correct. In this sentence, eliminating the wordy construction to be able allows to move to be parallel to to apply. C Using a semicolon here causes that to refer too broadly to the entire previous clause rather than specifically to programs; the two infinitives should be joined by the conjunction and, not separated by a comma. D The restrictive clause following programs defines programs and must be followed by that, which incorrectly introduces a nonrestrictive clause, set off in a pair of commas, containing relevant but not critical information; enables does not agree with the plural subject E That introduces a restrictive clause that defines programs; which introduces a nonrestrictive clause, set off by a pair of commas, that may be dropped from the sentence; that is required here because the clause defines programs 这句的意思是说,that可以用来指代整个句子了? 我怎么一直记得,that是用来指代同种但不同一个的名词,而且记得that做主语基本就是错,还记得that指代时需要加限制成分 好象从来没有见过that指代整句话的题.
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