(A) assuring the doors are properly closed
(B) for the assurance of proper closing
(C) assuring proper closure
(D) to assure closing the doors properly
(E) to assure that the doors are properly closed
Solution:
OG Solution:
The correct choice will include to assure, an infinitive parallel to to prevent. Thus, A, B, and C are disqualified. Moreover, the participial phrases in A and C (assuring... ), easily construed as adjectives modifying latches, are confusing. Choices B and C are additionally faulty because, in omitting the noun doors, they fail both to specify what is being closed and to supply an antecedent for the pronoun them. D offers the necessary infinitive, but the gerund phrase closing ... imprecisely refers to the act of closing the doors rather than to the condition of the closed doors. Choice E, with its idiomatic and precise noun clause, is the best answer.
Sentence Correction - 1000 Questions with Solution:
