Question

Fill in the blank with a suitable preposition:

Who was the first man who walked ________ the moon?

• A. In
• B. At
• C. On
• D. Of

Answer 1

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