To prepare for the deep-sea dive, the researchers calibrated the sonar equipment, checked the oxygen levels in the pressurized suits, and a final safety briefing was conducted.
Which choice most effectively maintains a parallel grammatical structure in the sentence?
- Aand a final safety briefing was conducted
- and conducted a final safety briefingCevap
- Cand conducting a final safety briefing
- D, they conducted a final safety briefing
Cevap
and conducted a final safety briefing
The option containing 'and conducted a final safety briefing' is correct because it uses the active past-tense verb 'conducted,' which matches the grammatical form of 'calibrated' and 'checked' established earlier in the sentence.
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Anahtar Kavram
Parallel structure in lists requires all items in a series to share the same grammatical form (e.g., all past-tense verbs, all gerunds, or all noun phrases).