Vocabulary (idiom): Choose the verb that best completes the expression “Many areas of the city were ______ into darkness for several hours.” Select the correct idiomatic verb.

Given data

• Expression: ______ into darkness (power outage context).

Concept/ApproachThe idiom is plunged into darkness meaning “suddenly made dark.”

Option analysisplunged — correct idiom.spread — wrong verb; “darkness spread” has different structure.merged — incorrect with “into darkness.”deep — adjective, not a verb.

Final Answerplunged