Question

Fill in the blank with a suitable preposition:

I'm not very good ________ mathematics.

• A. Of
• B. On
• C. In
• D. At

Answer 1

The correct option is D At

A preposition is a word which comes before a noun or a pronoun and establishes a relationship between the elements of a clause or words. Option D)at is correct as it indicates a skill. The other options are wrong as of, on, and in indicate possession, a surface, and the inside of an area respectively. These uses don't fit in the given question. The correct answer is D)at.