Question

Fill in the blank with a suitable preposition:

________ the future, people will be living on pills.

• A. In
• B. On
• C. By
• D. At

Answer 1

Answer: (A)

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 A)in is correct as it indicates time. The other options are wrong as on, by, and at indicate a surface, usage, and a specific location respectively. These uses don't fit in the given question. The correct answer is A)in.