Bunuel
Never before had American businesses confronted
so many challenges as they did during the Great Depression.
(A) so many challenges as they did during the Great Depression
(B) so many challenges at one time as they confronted during the Great Depression
(C) at once so many challenges as they confronted during the Great Depression
(D) as many challenges as it did during the Great Depression
(E) as many challenges as they did during the Great Depression
OFFICIAL EXPLANATION:
You’ve memorized that the proper comparison construction is as . . . as, so you know that the sentence contains an idiomatically improper construction (it also probably sounds strange to you!). Start by eliminating all answers that don’t correct so many . . . as to as . . . as. Choices (A), (B), and (C) retain the improper construction, so cross them out.
Now consider Choices (D) and (E). Both maintain the original verb, which is fine. The sentence compares two different periods of time. The first portion of the sentence refers to the period before the Great Depression, which requires the past perfect verb had . . . confronted. The underlined part of the sentence simply requires the past tense verb did to maintain the proper tense. Choice (D) creates a new error in pronoun agreement by using the singular pronoun it to refer to the plural noun businesses. Choice (E) is the correct answer: Never before had American businesses confronted as many challenges as they did during the Great Depression.