Multiple choice

Directions: Fill in the blank with the corrrect option.

The institution was ______ fire.

  1. at

  2. on

  3. in

  4. of

  5. from

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

'On fire' is the correct idiomatic expression for something that is burning or in flames. The phrase uses the preposition 'on' to indicate the state of being aflame. 'At fire', 'in fire', 'of fire', and 'from fire' are not standard English expressions for describing something that is burning.

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