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Question

Difficulty: MediumShifts in Construction

Read the passage below. Fill in the blank with the correct form of the verb in parentheses to maintain a consistent grammatical construction and avoid an inappropriate shift in verb tense.

Answer:While the geologists conducted their field research, they gathered core samples from the valley. They analyzed the mineral composition of the rocks, and they 【documented】 (document) the geothermal activity in the region.

Answer

documented
The correct answer is 'documented'. The passage describes a series of completed actions in the past ('conducted', 'gathered', 'analyzed'). To maintain a consistent construction, the final verb in the sequence must also be in the simple past tense.

Step-by-Step Solution

1
Identify the tense of the verbs established in the surrounding context of the passage.
The verbs 'conducted', 'gathered', and 'analyzed' are all in the simple past tense.
Establishing the timeframe of the passage is necessary to ensure grammatical consistency throughout the narrative.
2
Conjugate the parenthetical verb 'document' to match the established simple past tense.
The simple past tense form of 'document' is 'documented'.
Using the same tense avoids an inappropriate verb tense shift and completes the parallel construction of completed actions.

Key Concept

Maintaining verb tense consistency within a passage to avoid illogical shifts in construction.
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Topics

Shifts in Construction

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