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Difficulty: MediumVerb Tense and Consistency

Read the passage below about art conservation:

During the 1930s, restoration experts working on medieval stained-glass windows in European cathedrals developed specialized chemical treatments to reverse environmental corrosion. As conservators carefully stripped away centuries of grime from the glass panels, they realize that atmospheric pollutants had reacted with trace minerals, creating a brittle crust that obscured the original colors.

Which option best replaces the underlined word to maintain consistent verb tense in the passage?

  1. A
    NO CHANGE
  2. realizedAnswer
  3. C
    will realize
  4. D
    have realized

Answer

The correct choice is 'realized', which uses simple past tense to match the established historical past timeframe of the narrative.
The simple past verb form 'realized' maintains consistent past tense throughout the historical narrative, matching earlier past-tense verbs such as 'developed' and 'stripped away'.

Step-by-Step Solution

1
Identify the timeframe established by surrounding verbs in the passage.
Verbs like 'developed' and 'stripped away' establish that the narrative takes place entirely in the past (the 1930s).
Verb tenses within a narrative must remain consistent unless there is a clear chronological shift.
2
Evaluate the underlined verb form ('realize').
'Realize' is in the present tense, which creates an unnecessary shift from past to present.
Inconsistent tense shifts confuse the timeline of historical events.
3
Select the verb form that maintains simple past tense consistency.
'Realized' provides the correct simple past tense form.
Matching past-tense forms maintains logical narrative flow and chronological consistency.

Key Concept

Verb Tense Consistency
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Topics

Verb Tense and Consistency

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