og11-88 The recent surge in the number of airplane flights has clogged the nation's air-traffic control system, to lead to 55 percent more delays at airports, and prompts fears among some officials that safety is being compromised. (A) to lead to 55 percent more delays at airports, and prompts (B) leading to 55 percent more delay at airports and prompting (C) to lead to a 55 percent increase in delay at airports and prompt (D) to lead to an increase of 55 percent in delays at airports, and prompted (E) leading to a 55-percent increase in delays at airports and prompting 1平行 一级排除 A,C,D 介宾结构的平行: lead to sth. ….. / prompt sth. 2词法 二级排除 B 两个不定式连用不是很好 In C and D the infinitive phrase to lead to ... is less idiomatic A..in B 的用法 更准确 55-percent increase in delays conveys the meaning more accurately than does the phrase 55 percent more delay(s |