A

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

  • (A) of
  • (B) on
  • (C) for
  • (D) off
  • Correct Answer - Option(B)
  • Views: 39
  • Filed under category English
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Explanation by: Admin

In this sentence, "on" is the correct preposition to use.

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