og 185

noven-wang

185. 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
Choice C uses the singular delay where the plural is needed to indicate an increase in the number of delays; the phrase increase in delay has no exact meaning.这句话的意思到底是说delay要用复数，还是不要用复数啊？？请大牛们赐教！

dreadpower

是呀，用复数delays

mmfoolish

为何呢？难道delay不是抽象名词？

goodwish

Countable noun here.