Q. He gave a talk . . . . . . . . the causes of dengue fever.

  • (A) of
  • (B) on
  • (C) for
  • (D) off
✅ Correct Answer: (B) on
Explanation: In this sentence, "on" is the correct preposition to use.

Published by Team MCQ Buddy ⭐ 29.34K Points at 26-Apr-2025 09:18 am in English

Explanation by: Team MCQ Buddy
In this sentence, "on" is the correct preposition to use.

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