Select the most appropriate preposition to fill in the blank.She is very good ______ mathematics.

A. with

B. at

C. in

D. on

Doubtly AI Asked 27 Oct 2026 AI-generated · not yet verified ssc cpo Save WhatsApp Report

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Best answer

Answer: B. at

Answer: (B) at

The fixed expression is 'good at' a subject or skill.

Doubtly AI · 27 Oct 2026 AI-generated · not yet verified Report

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