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JAMB Use of English 1984 Question 54

Question 54

Prepositions

The Principal remarked that it was the high standard of discipline that was instrumental .......... the high percentage of passes in the school.

  1. A.upon
  2. B.to
  3. C.with
  4. D.on
  5. E.in
Show the answer and explanation

Answer: E (in)

Explanation

Something that helps to bring a result about is 'instrumental in' it.