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Monaali1 Posted 13 years ago
Grammar

catch on fire

in English exam the correct answer for below question is catch on fire but i don't know why its correct ?
Don't leave your books near the open fire. They might easily ___.
catch to fire
catch the fire
catch on fire
catch with fire
  

Top answer

It just is. That is the idiomatic phrase used to express the thought in English. Sometimes on is left out.

  • It just is.
  • That is the idiomatic phrase used to express the thought in English.
  • Sometimes on is left out.
  • com/catch+fire
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1 Answers
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It just is. Emotion: smile That is the idiomatic phrase used to express the thought in English. Sometimeson is left out. See here:

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