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Question

Difficulty: MediumVerbs, Tenses, and Aspect

Complete the sentence below by supplying the correct tense and aspect of the verb provided in parentheses.

Answer:By the time the regulatory agency published its official findings, the executive board 【had implemented】 (implement) all the recommended compliance measures.

Answer

had implemented
The correct verb form 'had implemented' uses the past perfect aspect to indicate that the action of implementing the compliance measures was completed prior to the past event of publishing the report.

Step-by-Step Solution

1
Analyze the temporal sequence established by the time clause in the sentence.
The expression 'By the time...' followed by the simple past verb 'published' establishes a past reference point.
An action that is completed prior to a designated past point in time requires the past perfect tense.
2
Form the past perfect tense of the verb 'implement'.
The auxiliary verb 'had' combines with the past participle 'implemented' to form 'had implemented'.
The past perfect aspect ('had' + past participle) accurately conveys the prior completion of the action before the second past action occurred.

Key Concept

Past Perfect Tense and Aspect in Time Clauses
Estimated Time:1m 0s
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Topics

Verbs, Tenses, and Aspect

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