Question

Fill in the blank with the most appropriate word.
He operates _____ the patient in an operating-theatre.

• A. at
• B. on
• C. in
• D. of

Answer 1

The correct option is B 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. The correct answer is B)on as it provides an answer to whom (the patient).

He operates on the patient in an operating-theatre.