Choose the sentence with the correct use of the idiom/phrase from the given list:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → He turned a blind eye to his son's prank
To turn a blind eye to something is to pretend not to notice something wrong. The idiom has a fixed form, turn a blind eye + to + the thing ignored, and Option 2 uses it correctly: the father knew of the prank but chose to ignore it.
Example: The teacher turned a blind eye to the students' whispering on the last day of term.
Why the Other Options are Incorrect?
Option 1: His son put off a blind eye prank — Incorrect. The idiom uses the verb "turn", not "put off", and "a blind eye prank" makes no sense.
Option 3: His father's blind eye turned at his prank — Incorrect. The eye has become the subject and "at" replaces "to"; the fixed form of the idiom is broken.
Option 4: He turned blind to his son's prank — Incorrect. "A blind eye" is missing; "turned blind" means became blind.