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Select the most appropriate meaning of the given idiom: A fly on the wall

Question and options

Select the most appropriate meaning of the given idiom:
A fly on the wall
  1. A vigilant security guard
  2. An unperceived observer
  3. Very intelligent person
  4. An unwelcome guest

Answer and explanation

Correct answer: B - An unperceived observer
A fly on the wall is someone who watches a situation without being noticed, an unperceived observer.

Practice for these exams

  • CUSAT CAT M.Sc. Bioethics

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