Question

Fill in the blank with a suitable preposition:

His office is __________ the second floor of the building.

• A. At
• B. In
• C. Of
• D. On

Answer 1

The correct option is D On

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)on is correct as it indicates a surface. The other options are wrong as at, in, and of indicate a specific location inside something, and possession respectively. These uses don't fit in the given question. The correct answer is D)on.