Multiple choice

Directions: Fill in the blanks with the suitable option.

_______ a busy city, Pompeii was virtually destroyed by the eruption of Mount Vesuvius in 79 A.D.

  1. Once

  2. It was once

  3. Once it was

  4. That once
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The sentence requires 'Once' as an adverb meaning 'formerly' or 'at one time' to modify the entire statement about Pompeii. Option B creates a redundant subject 'it,' Option C is wordy and awkward, and Option D is grammatically incorrect. The concise adverb at the beginning properly establishes the temporal context before the volcanic destruction.

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