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English Hard NTS Uploaded: 23 Aug 2026

Fill in the blank with the correct preposition/article: He is engaged ___ a research project.

  • A on
  • B at
  • C with
  • D in
Correct Answer: Option D — in
Explanation:
'Engaged in' is the correct idiomatic preposition for an activity.
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Submitted by: PaperMCQs
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