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Question

Difficulty: EasyVerbs, Tenses, and Aspect

The chief librarian noted that several rare manuscripts _______ from the archive before the security guard arrived. Which of the following verb forms correctly completes the sentence?

  1. had disappearedAnswer
  2. B
    have disappeared
  3. C
    disappears
  4. D
    has disappeared

Answer

The correct verb phrase is 'had disappeared' because it properly uses the past perfect tense to denote an event completed before another past event in reported speech.
The correct choice is 'had disappeared' because the past perfect tense is required to show that the disappearance took place before the security guard arrived in a past narrative context.

Step-by-Step Solution

1
Analyze the time relationship between the events in the sentence.
Two past events are described: the disappearance of the manuscripts and the arrival of the security guard.
When one past action occurs prior to another past action, the earlier action requires the past perfect aspect ('had' + past participle).
2
Examine the matrix reporting verb and clause structure.
The reporting verb 'noted' is in the simple past tense.
Reported speech in a past narrative frame requires appropriate tense backshifting to maintain sequence of tenses.
3
Select the verb form that satisfies both subject-verb agreement and past perfect aspect.
'had disappeared' accurately satisfies all grammatical constraints.
The auxiliary 'had' combines with the past participle 'disappeared' for both singular and plural subjects in the past perfect aspect.

Key Concept

Past Perfect Aspect and Sequence of Tenses in Reported Speech
Estimated Time:45s
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Topics

Verbs, Tenses, and Aspect

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