Question

Fill in the blanks with appropriate preposition (q.Mr.Dutta is _ the committee)

Answer 1

According to me the answer should be 'in' because it is suiting the best

Mr.Dutta is in the committee

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Answer 2

Mr. Dutta is in the committee: the Answer. The proposition is a word governing and dominating, and usually,  follow or precede a noun or pronoun and express as a relation to each other word or element in the clause.

Example:  ‘the man on the road’, ‘she arrived after breakfast, ‘why did you do it for? And many more.