Question

A part of the sentence is underlined, below are alternatives (1), (2), (3) which may improve the sentence. Choose the correct alternative. Choose (4) if no improvement is required.
He has a very good command on Mathematics.

• A. to
• B. of
• C. in
• D. No improvement

Hint:

Use "command of" when describing knowledge or mastery in a particular subject.

Answer 1

The Correct Option is B

Step 1: Understand the proper preposition.
The correct preposition to use after "command" when referring to knowledge or control of a subject is \textit{of}, not "on."
Step 2: Evaluate the alternatives.
"COMMAND TO" is incorrect.
"COMMAND IN" is also incorrect in this context.
"COMMAND OF" is the correct preposition to use when describing someone's control or expertise in a subject.
Step 3: Conclusion.
The correct phrase is "command of Mathematics."