Question

Fill in the blank with a suitable preposition:

Tokyo is the most crowded city ________ the world.

• A. On
• B. At
• C. In
• D. Upon

Answer 1

Answer: (C)

In

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